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Mathematics 22 Online
OpenStudy (anonymous):

Simplify. x+7/x^2+4x-21

OpenStudy (anonymous):

1/(x-3)

OpenStudy (luigi0210):

show steps cristina

OpenStudy (anonymous):

x+7 over (x^2+4x-21) factor x^2+4x-21 and you get (x+7) and (x-3) so you get X+7 over (x+7)(x-3) so since x+7 over x+7 is the same as 1 your numerator is 1 and (x-3) is left 1/(x-3)

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