simultaneous equations | Revision Server | Page 1

icy cliff May 6, 2023, 2:04 PM

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need help <@&791435371564892232>

twilit bolt May 6, 2023, 2:04 PM

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rearrange

icy cliff May 6, 2023, 2:05 PM

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i rearranged the second equation to get x = -y + 3

dreamy scroll May 6, 2023, 2:05 PM

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Rearrange the second equation and sub it into the first equation

icy cliff May 6, 2023, 2:05 PM

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yea i did

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i expanded it and used the quadratic formula but i got a math error

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(3-y) ^2 + y^2 = 17

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2x^2 - 6x + 8 = 0

x^2 -3x + 4 = 0, then i got a math error when i plugged that in the formula

dreamy scroll May 6, 2023, 2:07 PM

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It’s negative 8

icy cliff May 6, 2023, 2:07 PM

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ohh

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so it'd be -4

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?

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@dreamy scroll i got 3 + root13 / 2 and 3 - root13 / 2

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is that correct

dreamy scroll May 6, 2023, 2:10 PM

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Seems so

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All your other math is correct

#simultaneous equations