Question

(b) If x=1/2 is a root of the polynomial f(x) = 8x + ax2 - 4x +5, find the value of a
2​

Answer 1

Answer:

putting the value of x in equation

Step-by-step explanation:

8*1/2+a*1/2*2-4*1/2+5

4+a-2+5

7+a

a=-7