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Mathematics 13 Online
OpenStudy (anonymous):

Please help

OpenStudy (mathstudent55):

Where is the expression that needs to be evaluated?

OpenStudy (anonymous):

i got 786

OpenStudy (anonymous):

parentheses come before exponents. multiply 7 and 4 before squaring.

OpenStudy (mathstudent55):

\(\dfrac{u}{z} + xy^2 \) \(=\dfrac{20}{10} + 4(7^2) \) \(=2 + 4(49) \) \(=2 + 196\) \(= 198\)

OpenStudy (anonymous):

ahh i see i thought it was (xy)^2 yup 198

OpenStudy (mathstudent55):

Correct. 198 is the answer.

OpenStudy (anonymous):

sorry for the confusion!

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