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05-31-2013, 06:20 PM
(This post was last modified: 05-31-2013, 06:57 PM by Zekrom.)
Factor If possible:

y^2-y-20

t^2+t-18

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(05-31-2013, 06:31 PM)Zarquad link Wrote: Trial and error.

OK other than trial and error

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Ask google. Google is smarter than zarquad

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There is no other way that I know of other than finding the factors of the product and these integers will add together to make the sum.

Eg. Product: 15 Sum: 8

When the product is 15 the factors or 1 and 15 or 3 and 5. Next you can find the sum by adding the integers together. 1+15=16 so 1 and 15 cannot be the integers as they do not sum to equal 8. 3+5=8 so 3 and 5 are the integers as the multiply to equal 15 and they sum to equal 8.

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(05-31-2013, 06:59 PM)emorox link Wrote: There is no other way that I know of other than finding the factors of the product and these integers will add together to make the sum.

Eg. Product: 15 Sum: 8

When the product is 15 the factors or 1 and 15 or 3 and 5. Next you can find the sum by adding the integers together. 1+15=16 so 1 and 15 cannot be the integers as they do not sum to equal 8. 3+5=8 so 3 and 5 are the integers as the multiply to equal 15 and they sum to equal 8.

ya i wasn't sure what product and sum meant, but thanks

this next factoring question is tough/ I HATE FACTORING

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(y+4)(y-5)

Not sure on the second one :/

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(05-31-2013, 07:04 PM)emorox link Wrote: (y+4)(y-5)

Not sure on the second one :/

y^2-5y+4y-20

SO TRUE thanks

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The second one is not possible.

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(05-31-2013, 07:08 PM)emorox link Wrote: The second one is not possible.

oh thanks

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