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HELP!! please explain your answer, so I'll have a better understanding. ​

HELP!! please explain your answer, so I'll have a better understanding. ​-example-1

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\textit{difference of squares} \\\\ (a-b)(a+b) = a^2-b^2 \\\\[-0.35em] ~\dotfill\\\\ 36x^2-49\implies 6^2 x^2 - 7^2\implies (\underset{a}{6x})^2 - (\underset{b}{7})^2\implies \underline{(6x-7)}(6x+7)

User Adam Nellis
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