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Mathematics 9 Online
OpenStudy (anonymous):

Simplify the expression, please help?

OpenStudy (anonymous):

multiply the numbers (7*7) and add the indices (4+4)

OpenStudy (mayankdevnani):

\[\huge 7t^4 \times 7t^4=(7 \times 7)(t^4 \times t^4)=49t^{4+4}=49t\]

OpenStudy (anonymous):

this is because whenever u multiply u have to add the power

OpenStudy (mayankdevnani):

so option A is correct

OpenStudy (anonymous):

yes

OpenStudy (mayankdevnani):

\[\huge 49t^8=\color{green}{answer}\]

OpenStudy (anonymous):

Okay I understand, thank you guys!

OpenStudy (mayankdevnani):

welcome:)

OpenStudy (anonymous):

at any time:)

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