Question

( х + 2)(х-5)-3х(1-2х)
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Answer 1

$(x+2)(x-5)-3x(1-2x)=x^2-5x+2x-10-3x+6x^2=7x^2-6x-10$

Answer 2

Ответ:

( х + 2)(х-5)-3х(1-2х) = x^2-5x+2x-10-3x+6x^2 = 7x^2-10-6x .

Удачи!