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Mathematics 7 Online
OpenStudy (anguyennn):

how to factor 3x=2x^2+4

pooja195 (pooja195):

\[\huge~\rm~3x=2x^2+4\] We need to get this equation in: \[\huge~\rm~\bf~ax^2+bx+c\] form. Any ideas on how we can do that?

OpenStudy (anguyennn):

would it be 2x^2-3x+4

pooja195 (pooja195):

Correct :-) \[\huge~\rm~2x^2-3x+4 \] Let's use this method: |dw:1450736765652:dw| |dw:1450736790311:dw|

pooja195 (pooja195):

What number's can multiply to make 8 but add to make -3?

OpenStudy (anguyennn):

nothing

OpenStudy (anguyennn):

thats why I am stuck

pooja195 (pooja195):

Exactly that means that the equation cannot be factored

pooja195 (pooja195):

You would need to solve using the quadratic formula but your problem asks to factor it and the equation cannot be factored

OpenStudy (anguyennn):

so how would I do that please and thank you

pooja195 (pooja195):

You can't...your answer would need to be cannot be factored

OpenStudy (anguyennn):

but my teacher gave me the answer and told me to solve it

pooja195 (pooja195):

Hmm maybe i did something wrong? @AlexandervonHumboldt2 ? or @imqwerty can one of you double check

OpenStudy (anguyennn):

I will type the answer down for u

OpenStudy (anguyennn):

|dw:1450737179203:dw|

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