Trigonometry Examples

$4 \cos^{3} (x) - 3 \cos (x)$

Step 1

Factor $\cos (x)$ out of $4 \cos^{3} (x)$ .

$\cos (x) (4 \cos^{2} (x)) - 3 \cos (x)$

Step 2

Factor $\cos (x)$ out of $- 3 \cos (x)$ .

$\cos (x) (4 \cos^{2} (x)) + \cos (x) \cdot - 3$

Step 3

Factor $\cos (x)$ out of $\cos (x) (4 \cos^{2} (x)) + \cos (x) \cdot - 3$ .

$\cos (x) (4 \cos^{2} (x) - 3)$