Question

Développer

A= (2x-7)(3x+6)-2(2x+4)(2x-8)

Answer 1

`a = (6x^(2) - 9x - 42) - 2(4 {x}^(2) - 8x - 32) \\ a = (6 {x}^(2) - 9x - 42) - (8 {x}^(2) - 16x - 64) \\ a = ( - 2 {x}^(2) + 7x + 22)`

Answer 2

The answer simplified is:



a= —2x^2+7x+22