Question

When 3 times a number is added to it's square the total is 18​

Answer 1

3x + x^2 = 18

x^2 + 3x - 18 = 0

(x + 6)(x - 3) = 0

x + 6 = 0

x = -6

x - 3 = 0

x = 3

Answer 2

x(the number)=3

Explanation:

3×3+3squared = 18