Question
What is the LCD in its factored form of the following rational expression subtraction?
x2+2xx2+7x−8−xx−1
(1 point)
Responses
(x−1)2(x+8)
left parenthesis x minus 1 right parenthesis squared left parenthesis x plus 8 right parenthesis
x(x+2)
x left parenthesis x plus 2 right parenthesis
(x−1)(x2+7x−8)
left parenthesis x minus 1 right parenthesis left parenthesis x squared plus 7 x minus 8 right parenthesis
(x−1)(x+8)
x2+2xx2+7x−8−xx−1
(1 point)
Responses
(x−1)2(x+8)
left parenthesis x minus 1 right parenthesis squared left parenthesis x plus 8 right parenthesis
x(x+2)
x left parenthesis x plus 2 right parenthesis
(x−1)(x2+7x−8)
left parenthesis x minus 1 right parenthesis left parenthesis x squared plus 7 x minus 8 right parenthesis
(x−1)(x+8)
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