Ask your own question, for FREE!
Mathematics 11 Online
OpenStudy (chaotic_butterflies):

Please help me with factoring. I don't know how to do this type of problem, it's not a normal trinomial. 3x^2 y -27y^3

OpenStudy (faiqraees):

take 3y common

OpenStudy (chaotic_butterflies):

You mean take out the common factor?

OpenStudy (chaotic_butterflies):

x^2 - 9y^2 Like this? @FaiqRaees

OpenStudy (chaotic_butterflies):

3y (x^2 - 9y^2 )

OpenStudy (chaotic_butterflies):

Is there any other step?

OpenStudy (faiqraees):

yes very good

OpenStudy (faiqraees):

Now \[\large\rm a^2-b^2=(a+b)(a-b)\]

OpenStudy (chaotic_butterflies):

oh right, so (x+9y) (x-9y)

OpenStudy (faiqraees):

shouldn't the 9 be also get rooted???

OpenStudy (chaotic_butterflies):

no 3y

OpenStudy (chaotic_butterflies):

Yes that

OpenStudy (faiqraees):

than correct

OpenStudy (chaotic_butterflies):

Thank you

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!