Which of the following is not equivalent to the rational expression when x not equal to 7 ? x^2-49/x-7 A. x-7 B. x+7/x-7 C. 1/x+7 D. x+7

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Which of the following is not equivalent to the rational expression when x not equal to 7 ? x^2-49/x-7 A. x-7 B. x+7/x-7 C. 1/x+7 D. x+7

Mathematics
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HI!!
a rather strangely worded question, which you can interpret as "factor and cancel" does that help?
not really because I suck at math honestly and hi haha

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Other answers:

lol ok lets do it then factor the top, which is \(x^2-49\) the "difference of two squares" \[a^2-b^2=(a+b)(a-b)\] always, so \[x^2-49=(x+7)(x-7)\]
which of the following is equal to the rational expression when x not equal to 7............ I TYPED THE QUESTION WRONG!!!
i knew that since 3 of them are NOT and only one of them IS
yes... sorry
since the numerator is \((x+7)(x-7)\) the entire fraction is \[\frac{(x+7)(x-7)}{x-7}\] now cancel
x+7?
you know what i mean by that?
yeah you get \(x+7\)
thank you
\[\color\magenta\heartsuit\]
:)

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