Question

срочно........................................

Answer 1

Ответ:   x=2

$(3x-4)(x+2)=x(3x-2)\\\\3x^2+2x-8=3x^2-2x\\\\4x=8\\\\x=2$

Answer 2

Ответ:

$(3x - 4)(x + 2) = x(3x - 2) \\ 3x {}^{2} + 2x - 8 = x(3x - 2) \\ 3x {}^{2} + 2x - 8 = 3x {}^{2} - 2x \\ 3x {}^{2} + 2x - 8 - 3x {}^{2} = - 2x \\ 2x - 8 = - 2x \\ 2x - 8 + 2x = 0 \\ 4x - 8 = 0 \\ 4x = 8 \\ x = 8 \div 4 \\ x = 2$