$cos4a+4cos2a=8cos^4a-3$
$4.25-y+4y=36.35$
$\frac{11x}{4x+9}-\frac{14}{4x+9}=\frac{41}{4x+9}$
$\left(\frac{1}{13}\right)^{-1}$
$2.3\:x\:10$
$\frac{4x^3-3x^2+1}{6x^2+4}$
$-x\:+\:-y\:+\:7x\:-\:4y\:+\:13\:-\:99$
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!