What is the tangent of x^3+2x^2+4 ?

The tangent of x^3+2x^2+4 is y=(3a_{0}^2+4a_{0})x-2a_{0}^3-2a_{0}^2+4

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tangent of x^3+2x^2+4

tangent of

x^{3} + 2 x^{2} + 4

y = (3 a_{0}^{2} + 4 a_{0}) x - 2 a_{0}^{3} - 2 a_{0}^{2} + 4

Solution steps

Compute the tangent line to the general point

x = a_{0}

Find the tangent point:

(a_{0}, a_{0}^{3} + 2 a_{0}^{2} + 4)

Find the slope of

y = x^{3} + 2 x^{2} + 4 : \frac{d y}{d x} = 3 x^{2} + 4 x

EN : T i tl e G e n er a l Eq u a t i o n Sl o p e A t P o in t 2 Eq : m = 3 a_{0}^{2} + 4 a_{0}

Find the line with slope m=

3 a_{0}^{2} + 4 a_{0}

and passing through

(a_{0}, a_{0}^{3} + 2 a_{0}^{2} + 4) : y = (3 a_{0}^{2} + 4 a_{0}) x - 2 a_{0}^{3} - 2 a_{0}^{2} + 4

y = (3 a_{0}^{2} + 4 a_{0}) x - 2 a_{0}^{3} - 2 a_{0}^{2} + 4

What is the tangent of x^3+2x^2+4 ?
The tangent of x^3+2x^2+4 is y=(3a_{0}^2+4a_{0})x-2a_{0}^3-2a_{0}^2+4