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Mathematics 22 Online
OpenStudy (dannyrod2000):

factor the trinomial

OpenStudy (dannyrod2000):

http://prntscr.com/3ln1ni

OpenStudy (anonymous):

\[12x^2 + 5x - 2\]

OpenStudy (anonymous):

What two numbers add up to term B and multiply to term C

OpenStudy (anonymous):

In other words, what two numbers add up to 5, and multiply up to -2?

OpenStudy (isaiah.feynman):

@Pawtpie Are you sure that technique works in this case?

OpenStudy (dannyrod2000):

? i confused

OpenStudy (anonymous):

Never mind, I don't think my suggestion helps with this type of problem

OpenStudy (isaiah.feynman):

\[12x^{2}+8x+3x-2\] Factor it by grouping now.

OpenStudy (dannyrod2000):

this is a little hard

OpenStudy (isaiah.feynman):

No my son, \[(12x^{2}+8x)+(3x-2)\]Factor each bracket separately.

OpenStudy (dannyrod2000):

(3x+2)(4x-1)?

OpenStudy (isaiah.feynman):

Excellent!

OpenStudy (isaiah.feynman):

You have factored the trinomial.

OpenStudy (dannyrod2000):

so i just had to ignore the 5x?

OpenStudy (isaiah.feynman):

I made a mistake will the sign! Sorry we need to start over. :(

OpenStudy (isaiah.feynman):

Should be \[12x^{2}+8x-3x-2x\] The 5x has been expressed as 8x-2x.

OpenStudy (isaiah.feynman):

8x-3x*

OpenStudy (dannyrod2000):

i also need help in this. http://prntscr.com/3lning

OpenStudy (dannyrod2000):

ok thanks

OpenStudy (dannyrod2000):

i got it now

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