SOLUTION: I am having problems trying to set up the equations on story problems can you please show how to solve this step by step. Thanks If you subtract a number from twice its squ

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Question 351675: I am having problems trying to set up the equations on story problems can you please show how to solve this step by step.
Thanks


If you subtract a number from twice its square, the result is 3. Find all such numbers.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Let number be N.
Its square is N%5E2.
Twice its square is 2%2AN%5E2.
Subtracting the number from twice its square is 2N%5E2-N.
2N%5E2-N=3