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Which equation is a quadratic equation? 3x − y = 8x + 2 y = 7x(5 − 2x) + 9 7x^2 + y = (3 + x)(7x − 1) y − 3 = (x^2 − 3)(8x + 3)

Mathematics
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wat do you mean by y=?
idk that was in the question
put y=0 then this is quadratic equation y = 7x(5 − 2x) + 9

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Other answers:

For what equation when you will solve then you get \(x^2\)..
so can u help me with the question
thats your quadratic equation y = 7x(5 − 2x) + 9
wait.. oh.. so the second one is the quadraic equation?
yup.
thanks.
can u help me with more work
yes. You are welcome always.

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