Question

7 x (x - 4) -x (6-x)
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Answer 1

Пошаговое объяснение:

$7x(x - 4) - x(6 - x) = 7x {}^{2} - 28x - x(6 - x) = 7x {}^{2} - 28x - (6x - x {}^{2} ) = 7x {}^{2} - 28x - 6x - ( - x {}^{2} ) = 7x {}^{2} - 28x - 6x + x { }^{2} = 7x {}^{2} - 34x + x {}^{2} = 8x {}^{2} - 34x$

Answer 2

Ответ:

$7x(x-4)-x(6-x)=7x^2-28x-6x+x^2=8x^2-28x-6x=8x^2-34x$

Пошаговое объяснение: