$a2\:+\:16a\:=\:-15$
$x^2+8x-7>0$
$3x^2-\frac{3}{2}x$
$\sqrt{-49}$
$\sec x\left(\sec x+1\right)$
$150-5-1+3-2$
$-89\cdot0\cdot61$
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!