Question

(x+4)(x+4)-x(x+6)=-14x
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Answer 1

Ответ:

$(x + 4)*(x + 4) - x(x + 6) = - 14x \\ (x + 4) {}^{2} - x {}^{2} - 6x = - 14x \\ x {}^{2} + 8x + 16 - x {}^{2} - 6x = - 14x \\ 2x + 16 = - 14x \\ 2x + 14x = - 16 \\ 16x = - 16 \\ x = - 1$