Question

номер 710 Плиззз.....

Answer 1

$1) 8x^2+16xy+8y^2=8(x^2+2xy+y^2)=8(x+y)^2 \ 2) -2a^2+24ab-72b^2=-2(a^2-12ab+36b^2)=-2(a-6b)^2 \ 3) -12b^3-12b^2-3b = -3b(4b^2+4b+1)=-3b(2b+1)^2 \ 4)48m^3n-72m^2n+27mn=3mn(16m^2-24m+9)=3mn(4m-3)^2$