Wednesday

October 22, 2014

October 22, 2014

Posted by **Greg** on Thursday, April 26, 2012 at 8:42pm.

I need a little help as far as how I would begin working this problem out.

- Algebra 2 (Geometric Series) -
**visoth**, Friday, April 27, 2012 at 1:37amim not positively sure bc its been awhile but i think everything in the parenthesis will be raised to the 3:

2^3x^3 + 3^3y^3 giving you

8x^3 + 27y^3

- Algebra 2 - Update -
**Steve**, Friday, April 27, 2012 at 10:36amTo expand this you need to recall Pascal's Triangle, and use it to expand

(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3

You have a=2x and b=3y, so you end up with

(2x)^3 + 3(2x)^2(3y) + 3(2x)(3y)^2 + (3y)^3

= 8x^3 + 24x^2y + 54xy^2 + 27y^3

**Answer this Question**

**Related Questions**

Calc - We are working on finding the intervals of convergence of power series in...

Geometric Series (Algebra 2) - I need some assistance or a formula when trying ...

calculus - Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3...

calculus - Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3...

Calculus - Consider the infinite series of the form: (+/-)3(+/-)1(+/-)(1/3...

math(need 2nd opinion) - 1)Find a1 in a geometric series for which Sn=300,r=-3,...

Algebra 2 - Geometric Series - I need help evaluating the geometric infinite ...

algebra - Can someone please help me with this problem? Thanks! Evaluate the ...

CALC II - Determine the convergence of the following series using the nth-...

algebra(check) - 1)Find a1 in a geometric series for which Sn=300,r=-3,and n=4 a...