因式分解:x³+5p²+3x-9

网友回答

(x+3)(x+3)(x-1)
======以下答案可供参考======
供参考答案1:
x^3+5x^2+3x-9
=x^2(x+3)+2x^2+3x-9
=x^2(x+3)+(2x-3)(x+3)
=(x+3)(x^2+2x-3)
=(x+3)(x-1)(x+3)
=(x+3)^2(x-1)