Posted by **Angie** on Tuesday, April 28, 2009 at 6:43pm.

how do you factor 2c^2-7c=-5? I know that you have to change it to 2c^2-7c+5=0. Then you do this: (2c )(c ). But how do I find the two numbers? I can't think of one that works..

- Math -
**PsyDAG**, Wednesday, April 29, 2009 at 11:46am
Since 5 is a prime number, it can only be factored into 1 and 5. To add to -7, they both need to be negative. Which factor needs to be multiplied by 2 to get the sum of -7 for the middle term?

I hope this helps. Thanks for asking.

- Math -
**Angie**, Wednesday, April 29, 2009 at 3:45pm
I don't think there is any factor that can be multipl;ied by 2 to get -7..

## Answer This Question

## Related Questions

- MATH - The sum of the squares of two numbers is 2. The product of the two ...
- coomon factors - I don't understand common factors. can someone show me how to ...
- math - How do the ideas of divisibility and multiples relate to the study of ...
- science help - Two factors which cause global climate change are listed below. ...
- algebra - this is what u do on your first problem....first u take out the ...
- math,help,factoring - i need help i don't know how to do the next step. factor ...
- Math(Please Check Again) - 25-x^2 6x^2 ------ * ------ 12 2x *I got: 5-x/2 No. ...
- 6th Grade Math - How can you find an unknown factor in a multiplication problem...
- math - describe the pattern then find the missing numbers _, _,27,38, 49, 60 I ...
- math-word problems with quadratics - I have 5 questions... 1) The sum of two ...

More Related Questions