Question

If p(x)=x-4x+3, evaluate: p(2)- p(-1)+p(1/2)​

Answer 1

Step-by-step explanation:

p(x)=x-4x+3=-3x+4

p(2)=-3(2)+4=-2

p(-1)=3+4=7

p(1/2)=5/2

p(2)-p(-1)+p(1/2)=-2-7+5/2=-5/2

hope the answer helps

Answer 2

Step-by-step explanation:

$\bf \underline{Solution-}$

We have p(x) = x² - 4x + 3

p(2) - p(-1) + p(1/2)

= (2² - 4 × 2 + 3) - {(-1)² - 4(-1) + 3} + {(½)² - 4 × ½ + 3}

= (4 - 8 + 3) - (1 + 4 + 3) + (¼ - 2 + 3)

= - 1 - 8 + ⁵/₄

= - 9 + ⁵/₄

= (-36 + 5)/4

= -31/4 Ans.