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Mathematics 9 Online
OpenStudy (anonymous):

Which of the following is a quadratic polynomial ? (A) 3x^3+5x+4 (B)5+3x+2x^2+7x^3 (D) (x+1) (x-1)

OpenStudy (jiteshmeghwal9):

D

OpenStudy (anonymous):

y?

OpenStudy (jiteshmeghwal9):

Proof :- x(x-1)+1(x-1) x^2-x+x-1 x^2-1

OpenStudy (jiteshmeghwal9):

gt it ?

OpenStudy (jiteshmeghwal9):

& the identification of quadratic equation is that its highest degree is always 2.

OpenStudy (anonymous):

then wat about x^2+1/x+3 @jiteshmeghwal9

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