Ask your own question, for FREE!
Mathematics 18 Online
OpenStudy (anonymous):

http://goo.gl/tLtisB i got a+3/5(a+3)^2 is it right?

OpenStudy (aum):

\[ \frac{(a+3)^2}{(a-3)} \div \frac{5}{(a^2-9)} = \frac{(a+3)^2}{(a-3)} \times \frac{(a^2-9)}{5} = \frac{(a+3)^2}{(a-3)} \times \frac{((a+3)(a-3))}{5} = \\ \frac{(a+3)^3}{5} \]

OpenStudy (aum):

\(a^2-9 = a^2 - 3^2 = (a+3)(a-3)\)

OpenStudy (anonymous):

where did u get the exponent 3?

OpenStudy (aum):

\(\large (a+3)^2 \times (a+3) = (a+3)^3\)

OpenStudy (anonymous):

ohhh...right. thank you very much. could you help me with another one? its rly complicated

OpenStudy (aum):

go ahead.

OpenStudy (anonymous):

http://goo.gl/ivbQal alright thanks

OpenStudy (aum):

\[\large \frac{xy+xz}{xz-z^2} \times \frac{xy-yz}{xz+yz} \div \frac{y^2+yz}{x^2+xy} = \\ \large \frac{x(y+z)}{z(x-z)} \times \frac{y(x-z)}{z(x+y)} \times \frac{x(x+y)}{y(y+z)} = ? \]Can you simplify now?

OpenStudy (anonymous):

is it x^2 y /z^2y ?

OpenStudy (aum):

Almost there. You can simplify further.

OpenStudy (anonymous):

do i cancel the y's? to make it x^2/z^2

OpenStudy (aum):

Yes!

OpenStudy (anonymous):

yaaaaaayyyyy thanks that helped

OpenStudy (aum):

You are welcome.

OpenStudy (anonymous):

:D

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!