Question

Find the value of m so that 4 is a zero of the polynomial 3x +2x+m
answer this please​

Answer 1

Answer:

-20

Step-by-step explanation:

f(x) = 3x+ 2x+m

f(4) = 3(4) +2(4) + m

since 4 is zero so f(4) = 0

3*4+ 2(4) + m = 0

12 + 8 + m = 0

m = -20