Question

Представьте в виде произведения
y^{3} - y^{5}
2x-2x^{3}

Answer 1

$1. y^3-y^5 = y^3(1-y^2) = y^3(1^2-y^2) = y^3(1-y)(1+y)$
$2. 2x-2x^3 = 2x(1-x^2) = 2x(1^2-x^2) = 2x(1-x)(1+x)$