Question

Find the second de order derivaticed
x3 +7x² - 2x-9​

Answer 1

Answer:

6x+14

Step-by-step explanation:

f'(X)= 3x²+14x-2

F"(X)= 6x+14

Answer 2

let y = x² + 7x²— 2x — 9

*Differentiate w. r. t. x.

dy/dx = d/dx ( x³+7x²-2x-9)

dy/dx = 3x²+14x-2

*differentiate w. r. t. x.

d/dx ( dy/dx) = d/dx ( 3x²+14x-2)

d²y/dx² = 6x+14

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