Math, asked by Ahanthi1438, 1 year ago

find the roots of the quadratic equation using completing the square method 2 X square + X - 4 =0

Answers

Answered by sanjeevkush71
2
hi friend here is your answer !
2x2 + x -4=0
 2x2 + x
= 4 x2 + x/2 + 1/4
= 2+1/4 (x + 1/2)2
 = 9/4(x + 1/2)
= ± 3/2 x = 3/2 - 1/2
= 1 or x
= 3/2 + 1/2
= 2 
Hence,
x = 1 or 2.
Hope you got it
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