Question

Given constants a and b such that x2 + ax + b has factors (x + 7) and (x + 2) what is a?​

Answer 1

a=9 , b=14

Explanation:

Just do the operation (x+7)(x+2)

x(x)+x(2)+7(x)+7(2)

x^2+2x+7x+14

x^2+9x+14

So a=9 and b=14