Find the Roots (Zeros) f(x)=-4x^3-4x^2+8x+5

$f (x) = - 4 x^{3} - 4 x^{2} + 8 x + 5$

Step 1

Set $- 4 x^{3} - 4 x^{2} + 8 x + 5$ equal to $0$ .

$- 4 x^{3} - 4 x^{2} + 8 x + 5 = 0$

Step 2

Graph each side of the equation. The solution is the x-value of the point of intersection.

$x \approx - 1.73709682, - 0.55634042, 1.29343725$

Step 3