2 Answers
2x^2-7x+5=0
i.e. 2x^2 - 2x - 5x +5 = 0 [ -2x -5x = -7x & their product is 10x^2]
i.e. 2x( x - 1) - 5( x -1) = 0
i.e. ( x -1)( 2x - 5) =0
i.e. x - 1 = 0 .............(i)
& 2x - 5 = 0..............(ii)
From equation (i)
x =1
From equation (ii)
x = 5/2
So, the required values of x are 1 or 5/2.
Hope this has helped you to some extent. Now solve the other related problems with your friends.
12 years ago. Rating: 0 | |
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