When sutracting rational expressions, parentheses are important to make sure that you subtract the entire numerator. Complete each numerator by (a) filling in the parentheses, (b) removing the parentheses, and (c) conbining tems 10x 2x+7 x-9 x-9 10x 2x +7 10x- %3D (a) x-9 x-9 x-9

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A: 7) = x2 + 5x + 6x2*xx+2= x2 + 2x+3x + 6x*x*xx+2= (x+2)(x+3)x*1x+2= (x+3)x*1x+2=(x+3)x(x+2)Restrictio...

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