Homework Help: Algebra

Posted by John on Monday, October 22, 2007 at 9:08pm.

checking problem
Use FOIL to multiply:
(6x – 1)(3x – 4)
6x*3x + 6x*(-4) + (-1)*3x + (-1)*(-4) =
6x*3x = 18x^2
6x*-4 = -24x
-1*3x = -3x
-1* -4 = 4

18x^2 – 24x -3x +4 =
18x^2 – 27x + 4

Algebra - Melissa, Monday, October 22, 2007 at 9:12pm
Thats right! :)
- Algebra - John, Monday, October 22, 2007 at 9:17pm
  Thankyou.
  
  Any insight on this next one?
  
  (x^4y^6z^12/9^-2x^3y^-8z^-9)^0
  
  I am not sure why but i get the answer
  1/9^0
  
  I was thinking the ^0 multiplies everything to 0 but the 9.
Algebra - Reiny, Monday, October 22, 2007 at 9:19pm
John,
(anything) = 1 except 0^0 which is undefined
Algebra - Melissa, Monday, October 22, 2007 at 9:24pm
Anything to the 0 power is 1. And somehow my final answer was

xz^3 / 9^-2y^-2

but i really could be wrong, hopefully someone else can help u with this one cause im not positive!
Algebra - Anonymous, Saturday, October 1, 2011 at 1:49pm
6xy/9y4x30x3y/-48x
Algebra - Anonymous, Sunday, January 20, 2013 at 4:51pm
-5(x+1)+3x+2=6x+4

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