Question

Помогите!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 1

Ответ:

$16a^{2}-25b^{2} = 4^{2}a^2-5^2b^2=(4a-5b)(4a+5b) \\y^2-4y+4= (y-2)^2\\ 8x^4 - xy^3=x(8x^3-y^3)\\(7x-7)^2-(x+2)^2= 49x^2-98x+49 - x^2 - 4x - 4=48x^2 -102x +45=3(16x^2 -34x+15)$

Объяснение:

Используются формулы сокращенного умножения