helpppppppp

The function f(x) is such that f'(x) = 9x^2 + 4x + c, where c is a particular constant.
Given that f(2)=14 and f(3)=74, find the value of f(4).

The function f(x) is such that f'(x) = 9x^2 + 4x + c, where c is a particular constant.
Given that f(2)=14 and f(3)=74, find the value of f(4).

Integrate to get an expression with two unknown constants. Use the two points given to write two equations and solve to find the constants.

Original post by TheAlfie3000

LOL.

Integrate to get an expression with two unknown constants. Use the two points given to write two equations and solve to find the constants.

Arghhhhhh don't get it

Arghhhhhh don't get it

I'm ready to help but you're going to have to say more than that. :smile:

You have f'(x) and you need to get to f(x), which you do by integrating.

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