Tìm x biết
Giúp vs giải từng bước vs ạ
----- Nội dung ảnh -----
Bài 17: Tìm x biết:
1) \( x^2 - x = 0 \)
2) \( x + 5x^2 = 0 \)
3) \( x^2 + 7x = 0 \)
4) \( 2x^2 - 5x = 0 \)
5) \( 5x^2 - 13 = 0 \)
6) \( 4x^3 - x = 0 \)
7) \( x^3 - 16x = 0 \)
8) \( x^2 + 2x - 3x - 6 = 0 \)
9) \( x^2 + 20x - 20 = 0 \)
10) \( x^3 - 4x^2 - x + 4 = 0 \)
12) \( 7y + 3x + 2y \)
1) \( 2x^2 - 2x = (x - 1)^2 \)
2) \( 3(x - 6)^2 = 60 - 10z \)
3) \( 2(x - 5) - 2^2 + 25 = 0 \)
4) \( x^2 + 4(x + 2)(x - 3) = 0 \)
1) \( x^2 - x - 12 = 0 \)
2) \( x^2 - 8x - 9 = 0 \)
3) \( x^2 - 5x + 6 = 0 \)
4) \( x^2 - 3x - 10 = 0 \)
5) \( x^2 - 7x + 12 = 0 \)
6) \( 8x^2 + 30x + 7 = 0 \)
----- Nội dung ảnh -----
Bài 17: Tìm x biết:
1) \( x^2 - x = 0 \)
2) \( x + 5x^2 = 0 \)
3) \( x^2 + 7x = 0 \)
4) \( 2x^2 - 5x = 0 \)
5) \( 5x^2 - 13 = 0 \)
6) \( 4x^3 - x = 0 \)
7) \( x^3 - 16x = 0 \)
8) \( x^2 + 2x - 3x - 6 = 0 \)
9) \( x^2 + 20x - 20 = 0 \)
10) \( x^3 - 4x^2 - x + 4 = 0 \)
12) \( 7y + 3x + 2y \)
1) \( 2x^2 - 2x = (x - 1)^2 \)
2) \( 3(x - 6)^2 = 60 - 10z \)
3) \( 2(x - 5) - 2^2 + 25 = 0 \)
4) \( x^2 + 4(x + 2)(x - 3) = 0 \)
1) \( x^2 - x - 12 = 0 \)
2) \( x^2 - 8x - 9 = 0 \)
3) \( x^2 - 5x + 6 = 0 \)
4) \( x^2 - 3x - 10 = 0 \)
5) \( x^2 - 7x + 12 = 0 \)
6) \( 8x^2 + 30x + 7 = 0 \)