Find the discriminant of the quadratic equation. | Mathematics | Page 1

misty lagoonBOT Feb 7, 2023, 12:12 PM

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lapis zealot Feb 7, 2023, 12:15 PM

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Is this right?

supple parrot Feb 7, 2023, 12:46 PM

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What was the question asking you?

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But yes your working is correct

lapis zealot Feb 7, 2023, 12:50 PM

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Sorry. I should’ve said what it was asking.

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Question 4

supple parrot Feb 7, 2023, 12:52 PM

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So i'm assuming the answer to question 3 is $x^{2} + 8x +(4-k)$

split cragBOT Feb 7, 2023, 12:52 PM

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WotM8

lapis zealot Feb 7, 2023, 12:52 PM

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Question 3 is what you get when substituting the 2 together

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Sorry it’s sideways lol

supple parrot Feb 7, 2023, 12:53 PM

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No worries

lapis zealot Feb 7, 2023, 12:53 PM

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So it’s all good?

supple parrot Feb 7, 2023, 12:54 PM

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Yea, I think so. Since your k is an unknown, you cant derive the actual value of the discriminant.

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No errors in your calculation

lapis zealot Feb 7, 2023, 12:55 PM

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Okay yeah makes sense. Thank you for your help!

#Find the discriminant of the quadratic equation.