Tìm x biết
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DẠNG 2. TÌM X
Bài 1. Tìm x biết:
1) \( x^2 - x = 0 \)
4) \( 5x^2 - 13x = 0 \)
7) \( 4x^3 - x = 0 \)
10) \( x^3 - 16x = 0 \)
Bài 2. Tìm x biết:
1) \( 4x(x + 1) = 8(x + 1) \)
4) \( x(x + 2) - 3(x + 2) = 0 \)
7) \( 2x(x - 5) - 7(5 - x) = 0 \)
10) \( 5x(x - 1) = x - 1 \)
13) \( x(x - 3) - x + 3 = 0 \)
16) \( 2x(x + 5) - x - 5 = 0 \)
17) \( x(x) = 0 \)
DẠNG 2. TÌM X
Bài 1. Tìm x biết:
1) \( x^2 - x = 0 \)
4) \( 5x^2 - 13x = 0 \)
7) \( 4x^3 - x = 0 \)
10) \( x^3 - 16x = 0 \)
Bài 2. Tìm x biết:
1) \( 4x(x + 1) = 8(x + 1) \)
4) \( x(x + 2) - 3(x + 2) = 0 \)
7) \( 2x(x - 5) - 7(5 - x) = 0 \)
10) \( 5x(x - 1) = x - 1 \)
13) \( x(x - 3) - x + 3 = 0 \)
16) \( 2x(x + 5) - x - 5 = 0 \)
17) \( x(x) = 0 \)