using square roots how do I solve 3x squared +12=0

Question

3xsquared+12=0 how to solve using square roots

 

Answer 1

1. 3x²+12=0

2. 3x²=-12 --> isolate the variable x

3. x²=4 --> divide out the 3

4. x=2 & x=-2 -->take the square root of x² and 4, remember both 2² and -2² equal 4.

 

Hope this helps.