Question

разложите на множители 1) a^4+4a^3-6a^2 2)x²-y²-5x-5y

Answer 1

1) a⁴+4a³-6a²=a²(a²+4a-6)
2) x²-y²-5x-5y=(x-y)(x+y)-5(x+y)=(x+y)(x-y-5)