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Mathematics 19 Online
sunisround:

How do I determine the zeros of 4x^4+19x^3+6x^2-45x?

sunisround:

bruh.

Vocaloid:

factor out x first then apply the rational root theorem

sunisround:

what is the rational root theorem?

sunisround:

oh the plus minus pq thing right

Vocaloid:

yes

Vocaloid:

|dw:1509323764898:dw|

Vocaloid:

unfortunately there is a lot of trial and error involved

sunisround:

the thing is that there is no p on this problem though.

Vocaloid:

after you factor out x there is

sunisround:

oh wait

sunisround:

x(4x-5)(x+3)^2

sunisround:

now i set equal to zero right

sunisround:

so is it 0 multiplicity 1, -5/4 multiplicity 1, and -3 multiplicity 2?

Vocaloid:

oh yeah sorry I got distracted

sunisround:

so is it right?

Vocaloid:

but yeah your factoring is right

Vocaloid:

the root is 5/4 not -5/4 though

sunisround:

yes i fixed it.

sunisround:

ok thank you.

Vocaloid:

then yeah your answer is right

sunisround:

by the way are you a male or a female?

Vocaloid:

you can use @vocaloid to tag me if I get distracted

Vocaloid:

I'm a woman

sunisround:

ok, anyways, thank you.

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