Question

7x²y²x+25xyx²y-18xy³y упростите выражения

Answer 1

$7x^3y^2+25x^3y^2-18y^4x=32x^3y^2-18y^4x=2xy^2(16x^2-9y^2)$
$=2xy^2(4x-3y)(4x+3y)$