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Mathematics 23 Online
OpenStudy (anonymous):

4b2+31b+42=0

myininaya (myininaya):

\[4b^2+24b+7b+42=0\]

myininaya (myininaya):

factor by grouping

myininaya (myininaya):

\[4b(b+6)+7(b+6)=0\]

myininaya (myininaya):

\[(b+6)(4b+7)=0\]

myininaya (myininaya):

\[b=-6 or b=-7/4\]

OpenStudy (anonymous):

4b2+31b+42=0 ===> (4b+7)(b+6)= 0 ===> b=-7/4 or b=-6

OpenStudy (anonymous):

-7/4,-6

OpenStudy (anonymous):

why my post done in another thread. do any of moderator try that

myininaya (myininaya):

what?

myininaya (myininaya):

try to refresh

OpenStudy (anonymous):

always this problem happens.

myininaya (myininaya):

i have to refresh alot

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