Question

Solve: 2x2+200=0

Answer 1

What you always ought to start such problems with is isolating the variable

Answer 2

Are imaginary answers allowed?

Answer 3

Not sure maybe....

Answer 4

Well, in any case, start by getting x^2 by itself on one side

Answer 5

I got it!
Subtract 200 from both sides
2x2=-200
Divide by 2
2x2/2=-200/2
The 2's cancel on the right side
2x=-100
Then divide by 2 on both sides
2x/2=-100/2
The 2's cancel on the right side, then you divide -100 by 2
x=-50

Answer 6

Whoa, wait.. That was supposed to be x^2?

Answer 7

\[2x ^{2}+200=0\]\[2x ^{2}=-200\]\[x ^{2}=-100\]\[x=\pm10i\]