I could easily simplify this problem using the steps they show in my algebra book, but how would YOU guys simplify it? I'm just really looking for some alternate solutions here.
-2z + 3 + 4z -17 + 20
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I could easily simplify this problem using the steps they show in my algebra book, but how would YOU guys simplify it? I'm just really looking for some alternate solutions here.
-2z + 3 + 4z -17 + 20
Group like terms?
How do you do it because as i see it there only seems to be one method which as Ouch! said is group like terms
Quote:
Originally Posted by Ouch!
FOIL? Or maybe it's Combine like terms.
FOIL needs polynomials. This is just your standard like-terms drill.Quote:
Originally Posted by Sagensyg
I believe that this becomes 2z + 6.
How do they say to do it in the book o.oQuote:
Originally Posted by Hambone
I just add -2z and 4z together to get 2z, then 3 - 17 + 20 to get 6.
2z + 6
:spin:
Wouldn't it be +6 because the Sum of 3-17+20 isn't -6.Quote:
Originally Posted by Jessweeee♪How do they say to do it in the book o.oQuote:
Originally Posted by Hambone
I just add -2z and 4z together to get 2z, then 3 - 17 + 20 to get 6.
2z - 6
:spin:
You know what, Sagensyg, forget about FOIL. This here is an example of FAIL.Quote:
Originally Posted by Jessweeee♪
If you hadn't noticed by now, Hambone, 23 is greater than 17.
Ooops....I knew that. Hey, I got the method right anyway!
It's mistakes like these that's making me fail my math course! I know what I'm doing, but I just put something stupid like a minus sign where a plus should be :jess:
Those mistakes will kill you in your future courses, especially Calc level classes, where the minus sign will give you a completely different answer. You should always check your work twice before you hand something in.Quote:
Originally Posted by Jessweeee♪
Actually, it'll start killing you once you get to polynomials and graphs, too.
It's killing me now!
:exdee:
I blame EoFF.
I might actually NEED help when I start polynomials. They're hard! I sucked at them last year.
Polynomials are easy. I suck at graphing though.
I hate math altogether though; I'm much better at English.
I like math, I'm just awful at it. I'm excellent at English, but I don't like it very much.
If you were a rocket enginner they'd all be dead now!!!:mad2:Quote:
Originally Posted by Jessweeee♪
That's why in the military, if you fold even one shirt wrong, they'll throw out your entire wardrobe and you have to refold it. It's not that they care if your underwear is in the right place, but if you read directions and do algorithms right. :D
Well, first you take it to dinner and buy it a drink. Then you drive it around for awhile till it wants to go home. Once there it will lose its answers to you. You stud you. Yeah, combine like terms. No other way because that's the simplest way.
3-17= -14 + 20 = 6Quote:
Originally Posted by Hambone
-2z + 4z = 2z
2z=6
z= 3
of course I simplified it more you can just say 2z+6.
IT won't be negative 6 because there is no way you can get negative 6 out of it.
of course remember if you want to solve z you have to do this
2z+6= 0
2z=6
z=3