Tìm x; y
giúp tớ voi aa,camon truoc aa!!><
----- Nội dung dịch tự động từ ảnh -----
3.Tìm x,y biết:
a)(x-2)²-x(x+2)=5
b)(x-1)+x(4-x)=11
c)(x-3)(x+3)=(x-5)²
d)(2x+1)-4x(x-1)=17
e)(3x+1)-9x(x-2)=25
f)(3x-2)(3x+2)-9(x-1)x=0
g)(x+2)²-(x-2)(x+2)=0
h)(3x+2)2-(3x-5)(3x+2)=0
i)(x+3)(x+2)(x-2)=4x+17
k)x²+y²+4y+13=6x
1)x²+y²+17=2x-8y
m)9x²+y+20=12x+8y
n)x+49y2+5+14y=4x
q)16x²+25y²+13=20y+24x
----- Nội dung dịch tự động từ ảnh -----
3.Tìm x,y biết:
a)(x-2)²-x(x+2)=5
b)(x-1)+x(4-x)=11
c)(x-3)(x+3)=(x-5)²
d)(2x+1)-4x(x-1)=17
e)(3x+1)-9x(x-2)=25
f)(3x-2)(3x+2)-9(x-1)x=0
g)(x+2)²-(x-2)(x+2)=0
h)(3x+2)2-(3x-5)(3x+2)=0
i)(x+3)(x+2)(x-2)=4x+17
k)x²+y²+4y+13=6x
1)x²+y²+17=2x-8y
m)9x²+y+20=12x+8y
n)x+49y2+5+14y=4x
q)16x²+25y²+13=20y+24x