Подобные треугольники

Jwhs the hello kitty and I will be in the hello kitty and I will be in the hello kitty and I will be in the and I will send you the hello kitty and

a)x^3-4x^2+16x+4x^2-16x+64=x^3+64

27a^3-45a^2+75a+45a^2-75a+125=27a^3+125

z³+21+3z+7z²=z²( z+7)+3*7+3z= z²( z+7)+3(7+z)=( z+7)(z²+3)