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Mathematics 9 Online
OpenStudy (anonymous):

x^2+6x+9/5x+15 simplifying rational expressions, helpppp

OpenStudy (jim766):

need to factor the numerator and denominator, any idea how to factor x^2 + 6x + 9 = (x )(x )

OpenStudy (anonymous):

yeah, would it be (x+3)(x+2) ? @jim_thompson5910

OpenStudy (jim766):

need two numbers that multiply to get 9, but also add up to 6

OpenStudy (jim766):

you are close by look again

OpenStudy (anonymous):

so (x+3)(x+3) but the bottom two numbers would have to be 5 & 3 right?

OpenStudy (jim766):

5x + 15 what is the GCF?

OpenStudy (jim766):

what divides evenly into both 5 and 15

OpenStudy (anonymous):

5! :)

OpenStudy (jim766):

(x+3)(x+3) ---------- now cancel out the (x-3) that is on both top and bottom 5(x + 3)

OpenStudy (jim766):

what is left?

OpenStudy (jim766):

x + 3 ----- 5

OpenStudy (jim766):

you good?

OpenStudy (anonymous):

yessss i really just needed the formula or whatever

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