Question 817996: X^2+3X-4-X+5
Could you please solve this and reply back with the answer and steps you did to solve it?
Answer by FightinBlueHens(27)   (Show Source):
You can put this solution on YOUR website! X^2+3X-4-X+5
Here you have 5 terms:x^2, 3x, -4, -x and 5
With the information given here, there is one type of thing you can do, and that is to combine like terms.
The like terms are 3x and -x, and -4 and 5.
There is nothing you can combine x^2 with because there are no other terms with x^2 in them.
3 times the value of x, minus the value of x once gives you 2 times the value of x (or 2x).
You can draw this to vizualize it if you need help. If one box represents the value of x, draw 3 boxes. Then subtract the value of 1 x, so you cross out a box and are left with 2 boxes.
-4 + 5 = 1 (Remember writing a negative like -7 is the same as adding a negative, because adding a negative amount means you are taking away.)
So the answer is x^2 + 2x + 1
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