Question

If x-4 is a factor of x2 + bx-24, what is the value of b?

Answer 1

Answer:

4

Step-by-step explanation:

x2 +bx-24=0

then the factor is x-4 then x=4

by substituting 4 in the place of x then

4×2+b×4-24=0

8+4b-24=0

4b=24-8=16

b=16/4=4