def equation(x):
    return 2 * x**3 + 2 * x**2 - 2 * x - 7


def bisection_method(a, b, tolerance=1e-3, max_iterations=100):
    if equation(a) * equation(b) >= 0:
        raise ValueError("The equation may not have a root in the given interval")

    for iteration in range(max_iterations):
        c = (a + b) / 2
        if equation(c) == 0 or abs(b - a) / 2 < tolerance:
            return c, iteration
        if equation(c) * equation(a) < 0:
            b = c
        else:
            a = c

    raise ValueError("The method did not converge")

# Solve the equation using the bisection method
a = -10
b = 10
root, iteration = bisection_method(a, b)
print("Root:", root)
print("Value at the root:", equation(root))
print("Iteration:", iteration)