$cos^4a\:-\:sin^4a\:+\:1=2\cos^2a$
$9\left(4v\right)$
$\left(3x+5a\right)\left(3x-5y\right)$
$\sqrt{\sqrt[5000]{3.1416}}$
$7\left(3z\right)$
$\left(a+5\right)\left(a-5\right)-3\left(a+2\right)\left(a-2\right)+5\left(a+4\right)$
Get a preview of step-by-step solutions.
Earn solution credits, which you can redeem for complete step-by-step solutions.
Save your favorite problems.
Become premium to access unlimited solutions, download solutions, discounts and more!