Question

If x=b is a solution of the quadratic equation x²+6x+9=0, then b is equal to
(a) 2 (b) -3 (c) 3 (d) -2​

Answer 1

Answer:

x^2+6x+9

x^2+3x+3x+9

x(x+3)+3(x+3)

(x+3)(x+3)

x= -3

option b is correct

Answer 2

Step-by-step explanation:

find the values of 45 - ( - 12 )