Question

cau a, 2x-2y=

cau b, x²-2x+1=

cau c,y³+4xy²+4y

cau d,x³-8

cau e,x²-2

phan tich cac da thuc tren thanh nhan tu

Answer 1

a)2x-2y=2(x-y)

b)x²-2x+1=(x-1)²

c)y³+4xy²+4y=y(y²+4xy+4)

d)x³-8=x³-2³=(x-2)(x²+2x+4)

e)\(x^2-2=x^2-\left(\sqrt{2}\right)^2=\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)\)