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Find the root of the quadratic …

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Find the root of the quadratic equations by using the quadratic formula :- 2x^-3x-5=0

    • Posted by Shreeman Devjeet Moharana 5 years, 4 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Girish Chandramouli 5 years, 4 months ago

    here ,, discriminant = (b^2 - 4ac ) = (-3 )^2 + (4×2×5) = 49 Quadratic formula: x = (-b +or- root of B^3 - 4ac )÷ by 2a 1. X = (3 + root of 49)÷ 4 =2.5 2. X= ( 3- root of 49) ÷ 4 = -4÷4 -1

    0Thank You

    Bhaskar Rawat 5 years, 4 months ago

    a=2 , b=-3 , c=-5 D=b^-4ac D=2^-4×2×-5 D=4+40 D=44,D<0,two distinct root Quadratic formula = -b±√D/2a = -(-3)±√44/2×2 X=3+2√11/4 , X=3-2√11/4

    0Thank You

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