Maths problems!

DublinArnie · 2015-09-03 19:10:36

Could anyone figure this out? I'm getting really close but none of my answers correspond with the BOK. I made a quadratic with the factors and then divided it into the long equation but can't seem to find a or b. Thanks. Q5

03-09-2015 07:10PM

#1

DublinArnie

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Could anyone figure this out? I'm getting really close but none of my answers correspond with the BOK.

I made a quadratic with the factors and then divided it into the long equation but can't seem to find a or b.

Thanks.

Q5

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#2 03-09-2015 07:56PM

Peregrine

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2 and -1 are roots of the equation 6x^4 - x^3.....= 0. Try it that way.

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#3 03-09-2015 08:23PM

DublinArnie

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Peregrine wrote: »

2 and -1 are roots of the equation 6x^4 - x^3.....= 0. Try it that way.

Got it!

Thanks

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#4 03-09-2015 08:28PM

DublinArnie

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Peregrine wrote: »

2 and -1 are roots of the equation 6x^4 - x^3.....= 0. Try it that way.

I tried that method first but got turned off because I kept using the calculator and it messed up the signs hence giving wrong values.

Really obvious question

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