Question

X2 + 18 = 67
whats the answer?

Answer 1

7

Explanation:

`x^(2)` + 18 = 67

You first need to subtract 18 from both sides:

`x^(2)` + 18 = 67

- 18 -18

_________

`x^(2)` = 49

To get rid of the square, you need to square root both sides:

`x^(2)` = 49

`√(x^2) = √(49)`

This leaves you with:

x = 7