Posted by **Aubrey** on Wednesday, April 11, 2007 at 3:33pm.

I need some help multiplying these two sets of binomials.

1. (x+5)(x+3) so I think the answer to this one is x^2+15 is this correct?

2. (x-5)(x+3) I think the answer to this one is x^2-15 but how do you know when to make it a + or a - in the solution?

1. WHat is 5 times x, Plus x times 3?

2. What is -5*x plus + 3*x ?

## Answer This Question

## Related Questions

- algebra - think of a condition under which product of anytwo binomials is a ...
- Math - Can you tell me how you would answer this question? My teacher says that ...
- math - Can you tell me how you would answer this question? My teacher says that ...
- Math - Please Check My Answer - Probably Last One! - Please help me with the ...
- Algebra - When multiplying two numbers written in scientific notation what do ...
- Math - Check My Answers - Please help me with the following(there is 9 problems ...
- CHEM** - I just have 2 other questions that I just want to make sure on: Place ...
- Chemistry - How many stereoisomers are there for 1,2-dichlorocyclopentane? The ...
- drbob222 math,correction - i made some corrections for the previous postage can ...
- Algebra - Simplify the expressions and solve the equations 1. 2√3 - √...

More Related Questions