Question

If p(x) = x – 4x + 3 then evaluate p (2) – p (-1) + p (1/2)​

Answer 1

Answer:

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

=2-8+3

-6+3

-3

p(-1)=-1-4(-1)+3

=-1+4+3

5+3

8

p(1/2)=1/2-4(1/2)+3

1/2×(-2)+3

-1+3

2

-3-8+2

-11+2

-9

Answer 2

p(x) = x - 4x + 3

p(2) = 2-4 × 2+3

p(2) = 2-8+3

p(2) = -3

p(-1) = -1 -4(-1) +3

p(-1) = -1+4+3

p(-1) = 6

p(1/2) = 1/2 - 4×1/2 +3

p(1/2) = 1/2 -2+3

p(1/2) = 1-4+6/2

p(1/2) = 3/2

p(2) - p(-1) + p(1/2) = -3-6+3/2

= -9+3/2

= -18+3/2

= -15/2