It should be:
I am trying to expand the Binomial (x - 4y)5 .
this is what I got , can someone tell me , where I went wrong or correct me.
X^5-(4^0*y^0)+x^4(4^1*y^1)+X^3-(4^2*y^2)+x^2-(4^3*y^3)+x-(4^4*y^4)+x^0-(4^5*y^5)
(x^5-1)+(x^4-4y)+(x^3-16y^2)+(x^2-64y^3)+(x-256y^4)+(1025y^5)
Thanks , AC
Hello, AlgebraicallyChallenged!
Better review the Binomial Expansion . . .
You totally forgot the Binomial Coefficients,
. . and you're writing those minus-signs incorrectly.
Expand: .
This is what you should have had . . .
x^5(-4y)^0 + 5x^4(-4y)^1 + 10x^3(-4y)^2 + 10x^2(-4y)^3 + 5x(-4y)^4 + x^0(-4y)^5
The expansion is: .
We have: .
. . . . . .
. . . . . .
. . . . . as Amanda promised.