please help on #14 there is the answer but i need to know how to do it

Answer:
x⁴-5x³+5x²+5x-6
Step-by-step explanation:
here given = 3, -1, 1, 2
so put the opposite signs + to - and - to +, and put them in to the equation.
(x-3)(x+1)(x-1)(x-2)
(x²+x-3x-3)(x-1)(x-2)
(x²-2x-3)(x-1)(x-2)
(x³-2x²-3x-x²+2x+3)(x-2)
(x³-3x²-x+3)(x-2)
=x⁴-5x³+5x²+5x-6
help me reach Genius by marking this as brainliest answer. hope it helped
Answer:
Step-by-step explanation:
x³-9x²+14x+24
Step-by-step explanation:
(x³-3x²-4x-6x²+18x+24)
x³-9x²+14x+24