Question

please help me guys....i can't understand

Answer 1

@
2x³-3x²-3x+2
=>x²(2x-3)-1(3x-2)
=>(x²-1)(2x-3+3x-2)
=>(x²-1²)(5x-5)
=>(x+1)(x-1)(x-1)(5)
______________
x³-3x²-10x+24
=>x²(x-3)-2(5x-12)
=>(x²-2)(x-3+5x-12)
=>(x²-2)(6x-15)
=>(x²-2)(2x-5)(3)
@:-)