Question

If 2 is a root of the equation x^2 + bx + 12 = 0 and the equation x^2 + bx + q = 0 has equal roots, then q is equal to

Answer 1

Answer:

Step-by-step explanation:

SO X=2

(2)^2 + B*2 + 12 = 0

4 + 2B + 12 = 0

14 + 2B = 0

2B = -14

B = -14/2

B= -7 -----------------(1)

PUT THIS VALUE IN 2 ND EQUATION

(2)^2 - 7 * 2  + Q = 0

4 - 14 + Q = 0

-10 + Q = 0

Q = 10----------------(2)

hope it helps you