# How do you solve the equation #2x^2+16=x^2+7#?

##### 1 Answer

Jul 26, 2017

#### Answer:

Not Real

#### Explanation:

- Combine like terms:

#2x^2+16=x^2+7#

#x^2 = -9# - Solve for x by taking the square root of both sides.

#sqrt(x^2)=+-sqrt(-9)#

The answer is not real, because you are taking the square root of a negative number. Nonetheless, the answer would be...

#x=+-3i#