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Mathematics 16 Online
OpenStudy (anonymous):

still need help 4u^2 +9u - 28 (factor by grouping) 4(-28)=112 so my factors would be 7 and 16 now where do I go?

OpenStudy (anonymous):

nevermind got it

myininaya (myininaya):

4(-28) is -112 one of the factors needs to be negative -7(16) 4u^2+16u-7u-28

OpenStudy (anonymous):

i got (4u-7)(u+4)

myininaya (myininaya):

yep thats right

OpenStudy (anonymous):

OMG now I get a gold star! lol

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