Looking for something else?

Not the answer you are looking for? Search for more explanations.

## More answers

Looking for something else?

Not the answer you are looking for? Search for more explanations.

- anonymous

simplify (3a-4b^3)^3 Can anyone help me? Should it be 27a^3-64b^9?
Mathway has some crazy answer...

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga.
Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus.
Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this

and **thousands** of other questions.

Get your **free** account and access **expert** answers to this and **thousands** of other questions

- anonymous

simplify (3a-4b^3)^3 Can anyone help me? Should it be 27a^3-64b^9?
Mathway has some crazy answer...

- jamiebookeater

See more answers at brainly.com

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your **free** account and access **expert** answers to this

and **thousands** of other questions

- anonymous

no
it is
27a^3 - 72a^2b^3 - 96ab^6 + 64b^9

- anonymous

how did you get the middle part? i don't get it.

- anonymous

did you use foil and do the equation times itself then foil again for the 3rd time?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

- anonymous

cubic expansion is
a^3 + a^2b + b^2a + b^3 for ( a + b ) ^ 3
its different from squaring

- anonymous

ok- thanks.

- anonymous

what you have as the "should be " answer

- anonymous

is the expansion of ( 3a)^3 - (4b^3)^3

- anonymous

is that correct though? if i was just asked to simplify?

- anonymous

= (3a - 4b^3)( 9a^2 +12ab^3 + 16b^6)

- anonymous

ahh ignore what I wrote above lol , I thought you meant that was the answer the textbook had

- anonymous

no, that was my answer. i see- so it is wrong.

- anonymous

well, I am guessing they said expand and simplify, because something factor is alot more simple than a messy cubic expansion

- anonymous

it is just a post i have to answer...simplify and then the equation.

- anonymous

i will write what i thought- seems a lot simpler than your way :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.