Question

solve 2x^2=8

Answer 1

divide both sides by 2

Answer 2

what do you get now?

Answer 3

\[\frac{2x^2}{2}= \frac{8}{2}\]

Answer 4

What's the answer?

Answer 5

I can help you to get the answer

Answer 6

Can you tell me ..What you get ,when you divide both sides by 2 ?

Answer 7

x^2=4

Answer 8

Right :)
Now take sqrt on both sides
\[\sqrt{x^2}=\sqrt{4}\]

Answer 9

x=2?

Answer 10

Right but it can be -2 or +2
Since \[\sqrt{4}= \pm 2\]

Answer 11

Got it ?

Answer 12

So x =2 or x=-2