Question

If p(x) = x²-4x+6, then the value is of p(1)-p(-1) is ______ 
a. 8
b. 11
c. -8
d. 3​

Answer 1

Answer:

p(1) - p(-1) = -8

Step-by-step explanation:

It is given that p(x) = x²- 4x + 6.

We have to find the value of p(1) - p(-1)

p(1) means but x = 1 in x²- 4x + 6

p(1) = 1²- 4(1) + 6

= 1 - 4 + 6 = 7 - 4 = 3

p(-1) means but x = -1 in x²- 4x + 6

p(-1) = (-1)²- 4(-1) + 6

= 1 + 4 + 6 = 11

So, p(1) - p(-1) = 3 - 11 = -8

p(1) - p(-1) = -8