Question

2. Diego is solving the equation x2 - 12x = 18. Which value must be added to both sides of the equation to make the left side a perfect-square trinomial?​

Answer 1

You would need to subtract 18 to both sides to make this a perfect-square trinominal.

x^2 - 12x = 18

x^2 - 12x - 18 = 0

a = 1

b = -12

c = -18

Best of Luck!