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Mathematics 14 Online
OpenStudy (anonymous):

factor completely 5x^2-65x+210

OpenStudy (johnweldon1993):

Looks like each number has a factor of 5 right?

OpenStudy (anonymous):

yea wat do u do after 5(x^2-13x+42)

OpenStudy (lukecrayonz):

No, you can factor more.

OpenStudy (lukecrayonz):

5(x-6)(x-7)

OpenStudy (anonymous):

howd u get that

OpenStudy (lukecrayonz):

what add up to be 13, and multiply to be 42? 6 and 7, but since you have -13 it is -6 and -7, so 5(x-6)(x-7)

OpenStudy (anonymous):

thanks u

OpenStudy (anonymous):

if a problem turns out like 5(5x^2+48x-20) do u multiply 5 n -20 n see wat multiplies together to be that number n adds to be 48

OpenStudy (anonymous):

u there

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