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(49-x^2)(7-x)=(3x)(x)
We move all terms to the left:
(49-x^2)(7-x)-((3x)(x))=0
determiningTheFunctionDomain (49-x^2)(7-x)-3xx=0
We add all the numbers together, and all the variables
(49-x^2)(-1x+7)-3xx=0
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