Question

find all the. zeros of polynomial 4xpower 4-20x cube +23xsquare +5x-6if 2zeroes are 2&3

Answer 1

p(x)=4x⁴-20x³+23x²+5x-6
(x-2)(x-3) by formula of (x+a)(x+b)
(x)²+(-2-3)x+(-2)(-3)
x²-5x+6
divde it by p(x)
then do the splitting middle term of quotient to get other two zeroes