SOLUTION: x^2 + 4 = 40

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Question 89484: x^2 + 4 = 40
Answer by sofiyacherni(99) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2+%2B+4+=+40
first what you want to do is get the x term by itself, you can do that by sybtracting 4 from both sides, then you get
x%5E2+%2B+4-4+=+40-4
x%5E2+=+36 in order to find x you have to take the square root of both sides
sqrt%28x%5E2%29+=+sqrt%2836%29
your solutions are
x=6 or x=-6
The reason you have two solutions is because 6%2A6=36 and -6%2A%28-6%29=36