Solve 13a^3-12a^2-7a

Evaluate

13 a^{3} - 12 a^{2} - 7 a

To find the roots of the expression,set the expression equal to 0

13 a^{3} - 12 a^{2} - 7 a = 0

Factor the expression

a (13 a^{2} - 12 a - 7) = 0

Separate the equation into 2 possible cases

a = 0 13 a^{2} - 12 a - 7 = 0

Solve the equation

More Steps

a = 0 a = \frac{6 + 127}{13} a = \frac{6 - 127}{13}

Solution

a_{1} = \frac{6 - 127}{13}, a_{2} = 0, a_{3} = \frac{6 + 127}{13}

Alternative Form

a_{1} \approx - 0.405341, a_{2} = 0, a_{3} \approx 1.328418

Factor the expression