Derivative of

Question

-1/2 (x^5+2x-9)? please helppp?

Answer 1

 - 1/2 (x⁵ + 2x - 9)

= - (x⁵ + 2x - 9)/2

Differentiate with respect to x.

Apply the formulae: d/dx(xⁿ) = nx^n-1

d/dx(x) = 1

d/dx (constant) = 0

= - 1/2[5x⁴ + 2]

= (- 5x⁴)/2 - 1.