Differentiate y = 15x^3 + 24x^2 + 6 with respect to x.

To differentiate y with respect to x, you have to multiply each x term by their respective power and then decrease their power by one. For example, 4x2 differentiated is 2 x 4x2-1 = 8x. So, splitting this problem into parts, 15x3 differentiated is 3 x 15x3-1 = 45x2, and 24x2 differentiated is 48x. 6 doesn't involve x so it cannot be differentiated with respect to it. Hence, dy/dx = 45x2 + 48x.

DM

Related Maths A Level answers

All answers ▸

What is the derivative of f(x)=sqrt(3x+2)=(3x+2)^(1/2)?


How do you rationalise the denominator?


Solve the following equation by completing the square: x^2 + 6x + 3 = 0.


Prove that 8 times any triangle number is always 1 less than a square number