Does this function even *have* other zeros? | Mathematics | Page 1

fickle wharf Jun 4, 2023, 9:59 PM

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I've tried every method I could think of to find the zeros of this function other than -3 and I just haven't been able to.

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Btw, the prompt only allows you to give two answers and there's no "this has no solution"

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Figured it out, nvm

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+close

reef olive Jun 4, 2023, 10:41 PM

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Look among the factors of 75 . the negative ones.

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Or i guess you can apply the formulas for the sum and the product of the roots since you know one of them.

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Seems that they r complex numbers

near lantern Jun 4, 2023, 11:11 PM

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for similar problems

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if you find that -3 is a solution

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divide it by x-(-3) or x+3

vapid ocean Jun 5, 2023, 12:17 AM

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Yeah because you know -3 is a zero, you can divide x+3 out of the equation and plug the remaining equation into the quadratic formula

cunning cosmos Jun 6, 2023, 1:03 AM

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x = -3, -3 + 4i, -3 - 4i

#Does this function even *have* other zeros?