Question 355508
I need to solve (2x-2y)^4 using Pascal's Triangle.  Please help asap!
<pre>

                         1
                       1   1
                     1   2   1
                   1   3   3   1
                 1   4   6   4   1

 
{{{1(2x)^4(-2y)^0+4(2x)^3(-2y)^1+6(2x)^2(-2y)^2+4(2x)^1(-2y)^3+1(2x)^0(-2y)^4}}}

{{{1*2^4x^4(1)+4*2^3*x^3*(-2y)+6*2^2x^2*(-2)^2y^2+4(2x)(-2)^3y^3+1(1)(-2)^4y^4}}}  

{{{16x^4+4*8*x^3*(-2y)+6*4x^2(4)y^2+8x(-8)y^3+(16)y^4}}}

{{{16x^4-64x^3y+96x^2y^2-64xy^3+16y^4}}}

Edwin</pre>