Question

if a and b are zeros of x square + 7 x + 7 find the value of a + b minus 2 a b​

Answer 1

Answer:

-21

Step-by-step explanation:

if a and b are the zeroes of the quadratic polynomial,then

a+b=-7/1=-7

ab=7/1

now ,

(a+b)-2ab=(-7)-2(7)

=-7-14

=-21