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Quadratic Equation

Why a quadrat...

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Why a quadratic equation is in form- xsquare -(alpha +beta)x +alphabeta

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Q. If alpha beta are the roots of quadratic polynomial p(X)=xsquare -(k+6)X+2(2k-1) find the value of k when alpha+beta = 1alphabeta/2

Find roots of quadratic equations xsquare+4x-5=0 by completing square method.

Q. Find the values of k for which the quadratic equation 9xsquare-3x+k =0 has equal roots.

Without solving, the following quadratic equation find the value of p ; for which the root are real and equal

Xsquare+(p-3)x+p =0

α = - 5

β = 9

then form the quadratic equation.

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