Posted by Randy on Monday, April 16, 2012 at 7:34pm.
Consider the following expression.
3(x - 2) - 9(x**2 + 7 x + 4) - 5(x + 8)
(a) Simplify the expression.
- ALGEBRA - bell, Wednesday, April 18, 2012 at 2:23am
- ALGEBRA - megan <3, Wednesday, April 25, 2012 at 10:59pm
you have to know the distributive property in order to do this one.
so first, to make it easier, separate it. Like this:
Lets start with 3(x-2) 3*x is 3x and 3*-2 is -6... 3x-6
-9*x**2 is -9x**2 and -9*7x is -63x and -9*4 is -36 so this is -9**2-63x-36
-5(x+8) -5*x+ =5x and -5*8+ -40!!!!!
so you add these together to get
then you have to add all the like monomials together, which hopefully you can do but i'll explain it nonetheless.
putting these together, we get...(drum roll please :P)
im tired. hope this helped.
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