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OpenStudy (anonymous):
The square of the sum of a number and 3 is 16. Find the number. (There are two solutions.)
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OpenStudy (anonymous):
x=1 , -7
OpenStudy (anonymous):
sorry -7
OpenStudy (anonymous):
-7&+1 the square of 16 is -4or 4,and you know 3+x=-4or3+x=4
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