3x的3次方+11x的2次方+17x+6

1个回答

2x的3次方+11x的2次方+17x+6
=2x³+4x²+7x²+14x+3x+6
=2x²(x+2)+7x(x+2)+3(x+2)
=(x+2)(2x²+7x+3)
=(x+2)(2x+1)(x+3)