Question

which of the following is quadratic equation?
a) 30=5xsquare-xsquare.
b) 1/x+5x=xsquare.
c) (y-3) (y+3)=0.
d) y-81=7y.​

Answer 1

Answer:

b) 1/x+5x=xsquare

Step-by-step explanation:

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Answer 2

Answer:

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