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Mathematics 7 Online
OpenStudy (anonymous):

i just wnat to see if i got this question right. factor the trinomial. 5d^2-8d-8 i got 5(d^2+4d) -2(d+4) is it right?

OpenStudy (anonymous):

no, the expression you got is not a factorization.

OpenStudy (apoorvk):

nope. the breaking up will be difficult. you need to use the quadratic formulae.

OpenStudy (anonymous):

so how owuld i correct it?

OpenStudy (anonymous):

this is not factorable.

OpenStudy (anonymous):

im sorry the 8d is a 18d

OpenStudy (apoorvk):

yeah you are right then. '__'

OpenStudy (anonymous):

okay thannks

OpenStudy (anonymous):

in that case, now it is factorable with the -18d

OpenStudy (anonymous):

5d^2 - 18d - 8 = (5d +2)(d - 4)

OpenStudy (anonymous):

yea thats correct

OpenStudy (anonymous):

okay thanks

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