f(x)=x4+3x2+2x−15f(x) = x^4 + 3x^2 + 2x - 15f(x)=x4+3x2+2x−15
Find f′(x)f'(x)f′(x)
The root of f(x)=0f(x) = 0f(x)=0 lies in the interval [1.2,1.7][1.2, 1.7][1.2,1.7].
Use the Newton-Raphson method, starting with x0=1.7x_0 = 1.7x0=1.7, to find the root of f(x)=0f(x) = 0f(x)=0 to 3 decimal places.