posted by Samantha on .
Lately I just have blacked out in my algebra 1 class. Here's a equation on my worksheet, and I would be happy if you could show in steps how you got your answer. Thank you.
this is not an equation, it probably says to "simplify" it.
how about pretending to see it as :
1(2x²+5x+3)-1(x²+2x+1) , then
Yes it does say simplify it, I'm sorry. I understand how you got that, but what if I had something like this.
You start by ordering the terms. The priority of ordering is
1. name of variable in alphabetical order.
For example, put 2xy before y²
2. power of variable in descending order.
Example: x²y is placed before xy²
3. The constant term will be placed at the end.
After that, you would have collected like terms together. Add/subtract like terms. For example, 2x²y + 4x²y = 6x²y.
3x² + x²y + 4x + 5xy - 2xy + y
Add like terms, if any (5xy-2xy=3xy)
3x² + x²y + 4x + 3xy + y
That is all you can do. You cannot add/subtract unlike terms.
x²y and -2yx² are like terms.
xy and 3x² are unlike terms.