Find the value of 4xsquare -5x+3, when x =1by2
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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
Answered by
5
Heya !!
X = 1/2
P ( X ) = 4X² - 5X + 3
P(1/2 ) = 4 × (1/2)² - 5 × 1/2 + 3
=> 4 × 1/4 - 5/2 + 3
=> 1 - 5/2 + 3
=> ( 2 - 5 + 6 ) / 2
=> 3/2
X = 1/2
P ( X ) = 4X² - 5X + 3
P(1/2 ) = 4 × (1/2)² - 5 × 1/2 + 3
=> 4 × 1/4 - 5/2 + 3
=> 1 - 5/2 + 3
=> ( 2 - 5 + 6 ) / 2
=> 3/2
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