Question

Solve for x.....................

Answer 1

Answer:

B  x=3

Step-by-step explanation:

12x = 2x^2 +18

Divide by 2

12x/2 = 2x^2/2 +18/2

6x = x^2 +9

Subtract 6x from each side

6x-6x = x^2 -6x+9

0= x^2 -6x+9

Factor

What 2 numbers multiply to 9 and adds to -6

-3*-3 = 0

-3+-3 =-6

0= (x-3) (x-3)

Using the zero product  property

x-3 =0   x-3 =0

x=3   x=3