1.

Find the value of 4xsquare -5x+3, when x =1by2

Answer»

4x^2 - 5x + 3



=> 4( 1 / 2 )^2 - 5( 1 / 2 ) + 3


=> 4( 1 / 4 ) - 5 / 2 + 3


=> 2 / 2 - 5 / 2 + 3


=> ( 2 - 5 + 6 ) / 2


=> 3 / 2



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