Question

Разложите на множители a⁴+4a³-6a² , 3a+20xb-3b-20xa и x²-y²-5x-5y

Answer 1

a⁴+4a³-6a² = a²(a²+4a-6)

x²-y²-5x-5y=(x-y)(x+y)-5(x+y)=(x+y)((x-y)-5)=(x+y)(x-y-5)

3a+20xb-3b-20xa =3a-3b -20xa+20xb= 3(a-b)-20x(a-b)=(3-20x)(a-b)