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A number is 30 less than its square. Find the number

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Solution

Anumberis30lessthanitssquare.Findthenumber

Solution

Thenumber:6or−5
Solution steps
Represent the number with x
A.T.Q.:x=x2−30
Solve for x,x=x2−30:x=6,x=−5
Thenumber:6or−5

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