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Ex 4.3, 2 (i) - Chapter 4 Class 10 Quadratic Equations (Term 2)

Last updated at Aug. 3, 2021 by

Ex 4.3, 2 - Find roots using quadratic formula (i) 2x2 - - Solving by quadratic formula - Equation given

Ex 4.3, 2 - Chapter 4 Class 10 Quadratic Equations - Part 2

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Ex 4.3 ,2 Find the roots of the quadratic equation using quadratic formula (i) 2x2 7x + 3 = 0 2x2 7x + 3 = 0 Comparing equation with ax2 + bx + c = 0 a = 2, b = 7, c = 3 We know that D = b2 4ac D = ( 7)2 4 2 3 D = ( 7 7) (4 2 3) D = 49 24 D = 25 The roots to equation is given by x = ( )/2 Putting values x = ( ( 7) 25)/(2 2) x = (7 (5^2 ))/4 x = (7 5)/4 Solving Both Hence , the roots to equation are 3 and 1/2 .

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