Find the zeroes of the quadratic polynomial 5x²-2 root 5x-3 and verify the
relationship between the zeroes and the co-efficients.
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5x 2 −2 5x −3
=5x 2 + 5x −3 5x −3
= 5x ( 5x +1)−3( 5x +1)
=( 5x −3)( 5x +1)
=x= 5
3 ,x=− 5
1Sum of zeroes = \frac{3}{\sqrt{5} } - \frac{1}{\sqrt{5} } = \frac{2}{\sqrt{5} }
53 − 51 = 52
Sum of roots = \frac{-b}{a} = a−b = \frac{2\sqrt{5} }{5} = \frac{2}{\sqrt{5} }
525 = 52
Product of zeroes = \frac{3}{\sqrt{5} } X -\frac{1}{\sqrt{5} } = -\frac{3}{5}
53 X− 51 =− 53
Product of roots= \frac{c}{a} =\frac{-3}{5}
ac = 5−3
Hence verified.
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