Sunday, 6 April 2025

Find a quadratic polynomial, whose sum of zeroes is 5 and porduct of zeroes is 6.

 Let A and B are zeroes of a quadratic polynomial.

Then the required polynomial will be,

x² -(A+B)x+AB

Here A+B=5 and AB=6

Now the required quadratic polynomial is,

x²-5x+6   Ans.

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Check whether 7+3x is a factor of 3x^3+7x ? [ncert]

                               Now take 7+3x=0 =>3x= -7 => x= -7/3 => If p(x)=3x^3+7x , then, => p(-7/3) = 3(-7/3)^3+7(-7/3) =...