Question

Solve. x2 – 3x = 18

x = –3 and x = 6

x = 3 and x = –6

x = 2 and x = –3

x = –2 and x = 3

Answer 1

You should probably start by subtracting 18 from both sides to "move" it to the left of the equation...

x^2 - 3x = 18

x^2 - 3x - 18 = 0.

Then you can factor the expression.