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Mathematics 24 Online
OpenStudy (anonymous):

Can someone please help me solve this question: Simplify and select the answer with the appropriate restrictions for the variables. \[(x~+~5)(x~+~3)\over5x~+~15\]

OpenStudy (anonymous):

I know that x \(\neq \) -3.

OpenStudy (anonymous):

x2+83x+15 over 5x see if this works

OpenStudy (anonymous):

What am I supposed to do with that? How did you get an 83?

OpenStudy (sleepyhead314):

factor the bottom and get 5(x+3) right? then the (x+3) can cancel each other in the numerator and denominator because they cancel, there will be a Hole at x = -3

OpenStudy (anonymous):

How can 5x + 15 factor to 5(x + 3)?

OpenStudy (sleepyhead314):

5*x + 5*3 bring the 5's to the front (backwards Distributive Property) 5 (x + 3)

OpenStudy (anonymous):

Oh! Okay, now I understand!

OpenStudy (anonymous):

So the answer is \(\Huge~x~+~5\over\Huge~5\) where x \(\neq \) -3.

OpenStudy (anonymous):

Thanks for the help! @sleepyhead314 :D

OpenStudy (anonymous):

sorry i looked at it wrong

OpenStudy (anonymous):

It is okay. :)

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