SOLUTION: if a number is added twice its square, the result is 6. find the number

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Question 273945: if a number is added twice its square, the result is 6. find the number
Answer by jsmallt9(3758) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = "a number". Then "a number is added [to] twice its square, the result is 6" translates into:
x+%2B+2x%5E2+=+6
Solving this:
x+%2B+2x%5E2+-+6+=+0
2x%5E2+%2B+x+-+6+=+0
%282x-3%29%28x%2B2%29+=+0%7D%7D%5D%0D%0A%7B%7B%7B2x-3+=+0 or x%2B2+=+0
x+=+3%2F2 or x+=+-2