Foundation
Mathematics Foundation
types of polynomial
Question
If p(x) = 5x – 4x2 + 3 then p(– 1) = ?
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Solution
To find p(– 1) for the polynomial p(x) = 5x – 4x2 + 3, substitute x with – 1 and simplify.
First, write the equation: p(– 1) = 5(– 1) – 4(– 1)2 + 3
Now, calculate each term step - by - step:
5(– 1) = – 5
(– 1)2 = 1, so – 4(1) = – 4
The constant term is + 3
Now, add all the terms together: – 5 + (– 4) + 3 = – 6
Therefore, p(– 1) = – 6
Final Answer: – 6