Question

3x的3次方减5x的二次方减11x减3因式分解

3x的3次方减5x的二次方减11x减3因式分解

Answer 1

3x³-5x²-11x-3
=3x³+3x²-8x²-8x-3x-3
=3x²(x+1)-8x(x+1)-3(x+1)
=(x+1)(3x²-8x-3)
=(x+1)(x-3)(3x+1)

Answer 2

3x^3-5x^2-11x-3
=3x^3+x^2-6x^2-2x-9x-3
=x^2(3x+1)-2x(3x+1)-3(3x+1)
=(3x+1)(x^2-2x-3)
=(3x+1)(x-3)(x+1)