Question

ПОМОГИТЕ ПОЖАЛУЙСТА!

Answer 1

3)...=5(m²+4mn+4n²)=5(m+2n)²
4)...=x²(x+y)-y²(x+y)=(x+y)(x²-y²)=(x+y)(x+y)(x-y)=(x+y)²(x-y)
5)...(a-b)²(a-b-3)
6)...=(m+n)²(1-n)

$1)...=x^8* x^{12} = x^{20}$
$2)...=(a^5)^4=a ^{20}$
$3)...=m^2n^2*m^3n^4/m^m^3n^3=m^5n^6/m^4n^3=mn^3$
$4)...= x^{10} y ^{15}/x^4y^5= x^6y ^{10}$