SOLUTION: The product of a square of a nmber and 7 is the same as the sum of the cube of 3 and 1. Find the number

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Question 484885: The product of a square of a nmber and 7 is the same as the sum of the cube of 3 and 1. Find the number
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Let x is a number
x%5E2%2A7=3%5E3%2B1
7x%5E2=27%2B1
7x%5E2=28
x%5E2=28%2F7
x%5E2=4
x%5B1%5D=2 or x%5B2%5D=-2