SOLUTION: The sum of two binomials is 3x�-5x.If one of the binomials is 2x�-x, what is the other?

Question 198011: The sum of two binomials is 3x�-5x.If one of the binomials is 2x�-x, what is the other?
Found 2 solutions by jim_thompson5910, solver91311:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
If "A" and "B" are two binomials which add to a third binomial "C", then this means that . If we know what "A" and "C" are, then we can subtract "A" from both sides to solve for "B" like so:

So in this case, , , and "B" is our unknown binomial

Start with the given equation.

Plug in and

Distribute

Combine like terms.

So the unknown binomial is

Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

If the sum of two numbers is 5, and one of them is 3, what is the other number?

Same thing here, just add the inverse of to

John

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