Tìm x biết
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Bài 2. Tìm x, biết:
a) \((x - 3)^2 - (x - 1)(x + 3) = -4\)
b) \((2x - 3)^2 - (4x - 1)(x + 1) = -4\)
c) \((3x - 3)^2 + (-3x - 1)(3x + 3) = -7\)
d) \((4x - 3)^2 - (2x - 3)(8x + 1) = 0\)
e) \((2x - 3)^2 - (2x - 3)(2x + 3) = -4\)
f) \((x - 3)^2 + (-x - 1)(x + 2) = -9\)
g) \((2x - 3)^2 - (x - 1)(x + 1) = 1\)
h) \((3x - 1)^2 - (2x - 1)(x + 2) = 1\)
Bài 2. Tìm x, biết:
a) \((x - 3)^2 - (x - 1)(x + 3) = -4\)
b) \((2x - 3)^2 - (4x - 1)(x + 1) = -4\)
c) \((3x - 3)^2 + (-3x - 1)(3x + 3) = -7\)
d) \((4x - 3)^2 - (2x - 3)(8x + 1) = 0\)
e) \((2x - 3)^2 - (2x - 3)(2x + 3) = -4\)
f) \((x - 3)^2 + (-x - 1)(x + 2) = -9\)
g) \((2x - 3)^2 - (x - 1)(x + 1) = 1\)
h) \((3x - 1)^2 - (2x - 1)(x + 2) = 1\)