Posted by **Mary** on Monday, April 1, 2013 at 8:22pm.

I have several of these problems and am having trouble getting the hang of it.

Can you help me?

Factor. If the result is the square of a binomial, write it as such. If the result is prime, so state.

Here are the first couple of problems.

1) x^2 + 7x + 12

2) x^2 - x - 12

3) x^2 - 4x - 12

- Algebra -
**Reiny**, Monday, April 1, 2013 at 9:33pm
With these easy ones that start with 1x^2

look at the last term

e.g for x^2 + 7x + 12

last term is 12,

can you find two factors of 12 that have a sum of the middle term, namely 7 ?

yes: 3 and 4

3x4 =12

3+4 = 7

so the factors are (x+3)(x+4)

2nd:

s^2 - x -12

can you find two factors of -12 that have a sum of -1 ?

yes! , -4 and 3

-4(3) = -12

-4 + 3 = -1

so (x-4)(x+3)

you try the last one, let me know what you got

## Answer This Question

## Related Questions

- probability/binomial - i'm having trouble with probability and the binomial thm...
- Algebra - I have four problems I'm having trouble with. I need to solve the ...
- Advanced Algebra - I some problems that I need help with please. Add or subtact ...
- algebra - Factor completely. If a polynomial is prime, state this x^2 -2/5x + 1/...
- algebra--1 question - Suppose you divide a polynomial by a binomial. How do you ...
- Multiply write the result in scientific notation. - Its only practice work but I...
- Pre-Calculus - I am having trouble with several problems: 1) Find the ...
- Pre-Calculus - I am having trouble with several problems: 1) Find the ...
- math-- algebra - If a pro basketball player has a vertical leap of about 25 ...
- Algebra Question~! - Suppose you divide a polynomial by a binomial. How do you ...

More Related Questions