Given that y = x^2 +2x + 3, find dy/dx.

We use a typical rule for polynomials in the form y = axb , where a and b are real numbers. Also, for a polynomial equation y = axb +cxd +.... , dy/dx = d( axb)/dx + d(cxd)/dx + ...With this information, we can differentiate y = x2 +2x + 3 :dy/dx = d(x2)/dx + d(2x)/dx + d(3)/dx = 2x1 + 2x0 + 0x-1 = 2x + 2.

JC

Related Maths A Level answers

All answers ▸

Find the exact solution to ln(2y+5) = 2 + ln(4-y)


Find the intergral of 2x^5 - 1/4x^3 - 5 with respect to x.


Differentiate the following: y=sin(x^2+2)


Integral of (cos(x))^2 or (sin(x))^2