Question

1. The arithmetic mean of roots of the quadratic equation x^2- 10x+16=0 is​

Answer 1

5

Explanation:

x^2 - 10x + 16 = 0

factor

(x - 2)(x - 8) = 0

roots

x = {2, 8}

mean of roots

a = (2 + 8) /2

a = 5