Math Help
#1
Factor If possible:

y^2-y-20

t^2+t-18
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#2
Trial and error.
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#3
(05-31-2013, 06:31 PM)Zarquad link Wrote:  Trial and error.

OK other than trial and error
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#4
Ask google. Google is smarter than zarquad
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#5
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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#6
(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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#7
(y+4)(y-5)

Not sure on the second one :/
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#8
(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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#9
The second one is not possible.
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#10
(05-31-2013, 07:08 PM)emorox link Wrote:  The second one is not possible.

oh thanks
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