Answer
$36x^{2}-84x+49$
Work Step by Step
$(6x-7)^{2}=(6x-7)(6x-7)=6x(6x-7)-7(6x-7)=(6x)(6x)+(6x)(-7)-7(6x)-7(-7)=36x^{2}-42x-42x+49=36x^{2}-84x+49$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.