Rút gọn biểu thức


2−(3−x)(2+x)=(x−1)22 minus open paren 3 minus x close paren open paren 2 plus x close paren equals open paren x minus 1 close paren squared
2−(3−????)(2+????)=(????−1)2
Thay đổi vị trí các số hạng


2−(3−x)(2+x)=(x−1)22 minus open paren 3 minus x close paren open paren 2 plus x close paren equals open paren x minus 1 close paren squared
2−(3−????)(2+????)=(????−1)2


2−(−x+3)(2+x)=(x−1)22 minus open paren negative x plus 3 close paren open paren 2 plus x close paren equals open paren x minus 1 close paren squared
2−(−????+3)(2+????)=(????−1)2
Thay đổi vị trí các số hạng


2−1(−x+3)(2+x)=(x−1)22 minus 1 open paren negative x plus 3 close paren open paren 2 plus x close paren equals open paren x minus 1 close paren squared
2−1(−????+3)(2+????)=(????−1)2


2−1(−x+3)(x+2)=(x−1)22 minus 1 open paren negative x plus 3 close paren open paren x plus 2 close paren equals open paren x minus 1 close paren squared
2−1(−????+3)(????+2)=(????−1)2
Phân phối


2−(−x+3)(x+2)=(x−1)22 minus open paren negative x plus 3 close paren open paren x plus 2 close paren equals open paren x minus 1 close paren squared
2−(−????+3)(????+2)=(????−1)2


2−(−x(x+2)+3(x+2))=(x−1)22 minus open paren negative x open paren x plus 2 close paren plus 3 open paren x plus 2 close paren close paren equals open paren x minus 1 close paren squared
2−(−????(????+2)+3(????+2))=(????−1)2
Phân phối


2−(−x(x+2)+3(x+2))=(x−1)22 minus open paren negative x open paren x plus 2 close paren plus 3 open paren x plus 2 close paren close paren equals open paren x minus 1 close paren squared
2−(−????(????+2)+3(????+2))=(????−1)2


2−(−(x2+2x)+3(x+2))=(x−1)22 minus open paren negative open paren x squared plus 2 x close paren plus 3 open paren x plus 2 close paren close paren equals open paren x minus 1 close paren squared
2−−????2+2????+3(????+2)=(????−1)2
Phân phối


2−(−(x2+2x)+3(x+2))=(x−1)22 minus open paren negative open paren x squared plus 2 x close paren plus 3 open paren x plus 2 close paren close paren equals open paren x minus 1 close paren squared
2−−????2+2????+3(????+2)=(????−1)2


2−(−x2−2x+3(x+2))=(x−1)22 minus open paren negative x squared minus 2 x plus 3 open paren x plus 2 close paren close paren equals open paren x minus 1 close paren squared
2−−????2−2????+3(????+2)=(????−1)2
Phân phối


2−(−x2−2x+3(x+2))=(x−1)22 minus open paren negative x squared minus 2 x plus 3 open paren x plus 2 close paren close paren equals open paren x minus 1 close paren squared
2−−????2−2????+3(????+2)=(????−1)2


2−(−x2−2x+3x+6)=(x−1)22 minus open paren negative x squared minus 2 x plus 3 x plus 6 close paren equals open paren x minus 1 close paren squared
2−−????2−2????+3????+6=(????−1)2
Kết hợp các số hạng đồng dạng


2−(−x2-2x+3x+6)=(x−1)22 minus open paren negative x squared negative 2 x plus 3 x plus 6 close paren equals open paren x minus 1 close paren squared
2−−????2−2????+3????+6=(????−1)2


2−(−x2+1x+6)=(x−1)22 minus open paren negative x squared plus 1 x plus 6 close paren equals open paren x minus 1 close paren squared
2−−????2+1????+6=(????−1)2
Nhân với 1


2−(−x2+1x+6)=(x−1)22 minus open paren negative x squared plus 1 x plus 6 close paren equals open paren x minus 1 close paren squared
2−−????2+1????+6=(????−1)2


2−(−x2+x+6)=(x−1)22 minus open paren negative x squared plus x plus 6 close paren equals open paren x minus 1 close paren squared
2−−????2+????+6=(????−1)2
Phân phối


2−(−x2+x+6)=(x−1)22 minus open paren negative x squared plus x plus 6 close paren equals open paren x minus 1 close paren squared
2−−????2+????+6=(????−1)2


2+x2−x−6=(x−1)22 plus x squared minus x minus 6 equals open paren x minus 1 close paren squared
2+????2−????−6=(????−1)2
Thực hiện phép trừ


2+x2−x-6=(x−1)22 plus x squared minus x negative 6 equals open paren x minus 1 close paren squared
2+????2−????−6=(????−1)2


-4+x2−x=(x−1)2negative 4 plus x squared minus x equals open paren x minus 1 close paren squared
−4+????2−????=(????−1)2
Thay đổi vị trí các số hạng


-4+x2−x=(x−1)2negative 4 plus x squared minus x equals open paren x minus 1 close paren squared
−4+????2−????=(????−1)2


x2−x−4=(x−1)2x squared minus x minus 4 equals open paren x minus 1 close paren squared
????2−????−4=(????−1)2
Khai triển bình phương


x2−x−4=(x−1)2x squared minus x minus 4 equals open paren x minus 1 close paren squared
????2−????−4=(????−1)2


x2−x−4=(x−1)(x−1)x squared minus x minus 4 equals open paren x minus 1 close paren open paren x minus 1 close paren
????2−????−4=(????−1)(????−1)
Phân phối


x2−x−4=(x−1)(x−1)x squared minus x minus 4 equals open paren x minus 1 close paren open paren x minus 1 close paren
????2−????−4=(????−1)(????−1)


x2−x−4=x(x−1)−1(x−1)x squared minus x minus 4 equals x open paren x minus 1 close paren minus 1 open paren x minus 1 close paren
????2−????−4=????(????−1)−1(????−1)
Phân phối


x2−x−4=x(x−1)−1(x−1)x squared minus x minus 4 equals x open paren x minus 1 close paren minus 1 open paren x minus 1 close paren
????2−????−4=????(????−1)−1(????−1)


x2−x−4=x2−x−1(x−1)x squared minus x minus 4 equals x squared minus x minus 1 open paren x minus 1 close paren
????2−????−4=????2−????−1(????−1)
Phân phối


x2−x−4=x2−x−(x−1)x squared minus x minus 4 equals x squared minus x minus open paren x minus 1 close paren
????2−????−4=????2−????−(????−1)


x2−x−4=x2−x−x+1x squared minus x minus 4 equals x squared minus x minus x plus 1
????2−????−4=????2−????−????+1
Kết hợp các số hạng đồng dạng


x2−x−4=x2−x−x+1x squared minus x minus 4 equals x squared negative x negative x plus 1
????2−????−4=????2−????−????+1


x2−x−4=x2-2x+1x squared minus x minus 4 equals x squared negative 2 x plus 1
????2−????−4=????2−2????+1
Chuyển số hạng sang trái


x2−x−4=x2−2x+1x squared minus x minus 4 equals x squared minus 2 x plus 1
????2−????−4=????2−2????+1


x2−x−4−(x2−2x+1)=0x squared minus x minus 4 minus open paren x squared minus 2 x plus 1 close paren equals 0
????2−????−4−????2−2????+1=0
Phân phối


x2−x−4−(x2−2x+1)=0x squared minus x minus 4 minus open paren x squared minus 2 x plus 1 close paren equals 0
????2−????−4−????2−2????+1=0


x2−x−4−x2+2x−1=0x squared minus x minus 4 minus x squared plus 2 x minus 1 equals 0
????2−????−4−????2+2????−1=0
Thực hiện phép trừ


x2−x-4−x2+2x-1=0x squared minus x negative 4 minus x squared plus 2 x negative 1 equals 0
????2−????−4−????2+2????−1=0


x2−x-5−x2+2x=0x squared minus x negative 5 minus x squared plus 2 x equals 0
????2−????−5−????2+2????=0
Kết hợp các số hạng đồng dạng


x2−x−5−x2+2x=0x squared minus x minus 5 negative x squared plus 2 x equals 0
????2−????−5−????2+2????=0


−x−5+2x=0negative x minus 5 plus 2 x equals 0
−????−5+2????=0
Kết hợp các số hạng đồng dạng


−x−5+2x=0negative x minus 5 plus 2 x equals 0
−????−5+2????=0


1x−5=01 x minus 5 equals 0
1????−5=0
Nhân với 1


1x−5=01 x minus 5 equals 0
1????−5=0


x−5=0x minus 5 equals 0
????−5=0

x−5=0x minus 5 equals 0
????−5=0

2
Cộng 


55
5
 ở cả hai vế


x−5=0x minus 5 equals 0
????−5=0


x−5+5=0+5x minus 5 plus 5 equals 0 plus 5
????−5+5=0+5

3
Rút gọn biểu thức