Question

If p(x) = 7x - 3x^2-11 then find p(1)+p(-1)​

Answer 1

Answer:

-28

Step-by-step explanation:

substitute 1 and -1 in the equation

Answer 2

Answer:

p(1) + p(-1) = (-28)

Step-by-step explanation:

We have,

p(x) = 7x - 3x² - 11

Now, When x = 1

p(1) = 7(1) - 3(1)² - 11

p(1) = 7 - 3(1) - 11

p(1) = (-7) ----- 1

Similarly,

When x = (-1)

p(-1) = 7(-1) - 3(-1)² - 11

p(-1) = (-7) - 3(1) - 11

p(-1) = (-7) - 3 - 11

p(-1) = (-21) ------ 2

Thus, from eq.1 and eq.2 we get,

p(1) + p(-1) = (-7) + (-21)

= (-28)

Hence,

p(1) + p(-1) = (-28)

Hope it helped and believing you understood it....All the best