What is y when: 3y squared - 17 = 5y squared + 9 (with working showed)

I understand you need the pro numerals on one side and the numbers on the other. But I don't know the calculation to do this
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1 Answer

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3x^2 -17=5x^2+9

-2x^2=17 +9=26

2x^2=-26

x^2=-13

x=+- i* root(13)
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