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17 votes
17 votes
When 21 is subtracted from the square of a number, the result is 4 times the number.

Find the positive solution.

User Mmla
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1 Answer

23 votes
23 votes

Answer:

7

Explanation:

7^2 =49

49 -21 =28

28÷7 = 4

User Inigo Selwood
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