If p(x) = 7x-3x2
-11, then find p(1)+p(-1).
Answers
Answered by
0
Answer:-28
Step-by-step explanation:
-7-21=-28
Answered by
2
Answer:
- 28
Step-by-step explanation:
p ( x ) = 7x - 3x^2 - 11
= - 3x^2 + 7x - 11
p ( 1 )
= - 3 ( 1 )^2 + 7 ( 1 ) - 11
= - 3 + 7 - 11
= - 3 - 11 + 7
= - 14 + 7
= - 7
p ( - 1 )
= - 3 ( - 1 )^2 + 7 ( - 1 ) - 11
= - 3 ( 1 ) - 7 - 11
= - 3 - 7 - 11
= - 21
p ( 1 ) + p ( - 1 )
= - 7 - 21
= - 28
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