Question

find the value of m if polynomial p(x)=4xsquare -6x-m is exactly divisible by x-3​

Answer 1

Answer:

m = 8

Step-by-step explanation:

If p(x) is exactly divisible by x-3

x-3 = 0

x = 3

Substituting x for 3

p(x) = 4x^2 - 6x - m

p(3) = 4(3)^2 -6(3) - m

     =  4(9) - 18 - m = 0

     = 36 -18 - m  = 0

     = 18 - m = 0

    18 = m