Question

Розв’яжите рівняння: (x–1)(x+2)=(x–1)(2x+3)

Answer 1

(x - 1)(x + 2) = (x - 1)(2x + 3)

(x - 1)(x + 2) - (x - 1)(2x + 3) = 0

(x - 1)(x + 2 - 2x - 3) = 0

(x - 1)(-x - 1) = 0

-(x - 1)(x + 1) = 0

x = +-1

Ответ: -1; 1.

Answer 2

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