Homework Help: Algebra Please Help

Posted by Tammie on Tuesday, March 29, 2011 at 4:50pm.

Am not that great in math.

Describe the different methods that can be used to find the product:
(2x-5)(3x-1). I know there is the foil method.

Describe the different methods that can be used to find the product:
(5x+1)^2

Algebra Please Help - Reiny, Tuesday, March 29, 2011 at 6:22pm
you can line it up just like normal arithmetic multiplication

2x-5
3x-1
------
......... -2x + 5
6x^2 -15x
_______________
6x^2 - 17x + 5

(hoping that the x terms line up vertically)

best way to do (5x+1)^2 is using FOIL in
(5x+1)(5x+1)
= 25x^2 + 5x + 5x + 1
= 25x^2 + 10x + 1
Algebra Please Help - Anonymous, Thursday, March 31, 2011 at 11:13pm
Yeah I would just use the FOIL method because its way easier...

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