# How do you solve #x^{2} - 8= 0#?

##### 3 Answers

#### Explanation:

#"isolate "x^2" by adding 8 to both sides"#

#x^2=8#

#color(blue)"take the square root of both sides"#

#sqrt(x^2)=+-sqrt8larrcolor(blue)"note plus or minus"#

#rArrx=+-2sqrt2#

#### Explanation:

first add 8 to both sides:

now take the square root of both sides, remember you must use

#### Explanation:

#color(blue)(x^2-8=0#

To, solve this, we need to isolate

Add

Now, take the square root of both sides,

Now, take the prime factors of

Remember that