Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (ilovemath14):

HELP ASAP!! FAN AND MEDAL!! Factor each completely. 5. x^2-15x+56 6. n^2+5n-6 7. b^2+13b+40 (I THINK ITS PRIME) 8. n^2-4n+3 9. n^2+2n-63 10. x^2-2x-80

OpenStudy (ilovemath14):

@MissSmartiez @SnuggieLad

OpenStudy (anonymous):

No need to use mathway.com @TheCalcHater This is an important skill you need to build up not have a calculator do for you

OpenStudy (anonymous):

Ok so you can use the diamond method where you find what, for example the first one, what adds to -15 and multiplies to 56?

OpenStudy (welshfella):

take the first one can you come up with 2 numbers whose product is + 56 and whose sum = -15?

OpenStudy (thecalchater):

Since you have x^2 in every one.... It will always be (x-+b)(x-+c) where u have to find b and c.

OpenStudy (welshfella):

- it will have to be 2 negative numbers

OpenStudy (welshfella):

@ilovemath14 one is -7 what is the other?

OpenStudy (ilovemath14):

5. (x−7)(x−8) 6. (n+6)(n−1) 7. (b+8)(b+5) 8. (n−3)(n−1) 9. (n+9)(n−7) 10.(x+8)(x−10)

OpenStudy (welshfella):

- looks good to me...

OpenStudy (welshfella):

good job

OpenStudy (welshfella):

- i'm assumimg you didn't use mathway..

OpenStudy (thecalchater):

He/She probably did.... seeing it only took them 3 mins for all of them...

OpenStudy (ilovemath14):

I didn't @TheCalcHater I did them at school just wanted to make sure they were right cause i did them fast

OpenStudy (thecalchater):

gotcha

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!