Question

# The square of a number is added to two times the number and the sum is 24.

Equations and inequalities
The square of a number is added to two times the number and the sum is 24.

2021-01-25

Let he number be x.
The question is simply:
$$X^{2}+ 2x = 24$$

$$X^{2} + 2x - 24 = 0$$
$$(x - 4)(x +6) = 0$$
Therefore x can be either 4 or - 6.