Question

Упростить выражения:
(6a+2b)^2-24ab
6x^2-6(x-2)^2

Answer 1

(6a+2b)^2-24ab=36a^2+24ab+4b^2-24ab=36a^2+4b^2
6x^2-6(x-2)^2=6x^2-6(x^2-4x+4)=6x^2-6x^2+24x-24=24x-24

Answer 2

36a²+24ab+4b²-24ab=36a²+4b²
6x²-6(x²-4x+4)=6x²-6x²+24x-24=24x-24