Ex:
(x-1)³ will factor out to be (x³ - 3x² + 3x - 1).
There is some formula to do this without having to use a pencil or paper. I need to know it for my Math Final tomorrow.
Thanks in advance.
DC
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Ex:
(x-1)³ will factor out to be (x³ - 3x² + 3x - 1).
There is some formula to do this without having to use a pencil or paper. I need to know it for my Math Final tomorrow.
Thanks in advance.
DC
This may reach you too late but, the way to expand polynomials quickly is by Pascal's triangle
1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
ie. your x^3 poly is expanded to the 3d row down or 1x^3+3x^2+3x+1
or your x^5 is 1x^5+5x^4+10x^3+10x^2+5x+1
To get more rows add the numbers diagonally above the space that you are trying to fill.
Hope this helps.
-Swim'n Sasquatch