Question

If f(x) = 3x5 - 5x4 + 29, find f(-1).

Answer 1

f(-1) = 3((-1)^5)-5((-1)^4)+29 = -3-(5)+29 = 21

answer: 21

Answer 2

Answer:

The value of f(-1) is 21

Step-by-step explanation:

Given:

$f(x) = 3x^5 - 5x^4 + 29$

Finding f(-1)

        $f(-1)=3(-1)^5-5(-1)^4+29$

Multiplying '-1' odd times gives -1 and even times gives '1'

       $f(-1)=3(-1)-5(1)+29\\\\f(-1)=-3-5+29\\\\f(-1)=-8+29\\\\f(-1)=21$

The value of f(-1) is 21