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anonymous
 one year ago
Which of the following is not equivalent to the rational expression when x not equal to 7 ?
x^249/x7
A. x7
B. x+7/x7
C. 1/x+7
D. x+7
anonymous
 one year ago
Which of the following is not equivalent to the rational expression when x not equal to 7 ? x^249/x7 A. x7 B. x+7/x7 C. 1/x+7 D. x+7

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.1a rather strangely worded question, which you can interpret as "factor and cancel" does that help?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0not really because I suck at math honestly and hi haha

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1lol ok lets do it then factor the top, which is \(x^249\) the "difference of two squares" \[a^2b^2=(a+b)(ab)\] always, so \[x^249=(x+7)(x7)\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0which of the following is equal to the rational expression when x not equal to 7............ I TYPED THE QUESTION WRONG!!!

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1i knew that since 3 of them are NOT and only one of them IS

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1since the numerator is \((x+7)(x7)\) the entire fraction is \[\frac{(x+7)(x7)}{x7}\] now cancel

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you know what i mean by that?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1yeah you get \(x+7\)

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1\[\color\magenta\heartsuit\]
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