Solve the following equation.

$\frac{x+3}{x^2-1}-\frac{2 x}{x-1}=1$

Simplify. $(7 b c)(3 a b)$

Use the equation $u t-16 t^{2}=0$, where v=velocity in feet per second and t=time in seconds. A projectile is launched with the initial velocity of 896 ft/sec. How many seconds will it remain in the air?

Solve each equation. Check your solution. $6 \sqrt{\frac{5 k}{4}}-3=0$

Solve by completing the square. Check your solutions. $x^{2}-x=2$

Simplify. $i^{11}$

Solve each equation. State the number and type of roots. $x^{3}-6 x^{2}+7 x=0$

Simplify. $(6+2 i)-(4-3 i)$

Calculate the midpoint of the segment with the given endpoints. $G(5,3), H(-5,-3)$

Simplify. $(-5 i)(-8 i)$

Find the coordinates of the midpoint of the segment with the given endpoints. $P(10,-6), Q(-4,-7)$

Solve each equation. State the number and type of roots. $16 x^{4}-625=0$

Solve the following equation.

$\frac{2 t}{t+1}+\frac{4}{t-1}=2$

Solve each equation by using the Square Root Property. Round to the nearest hundredth if necessary. $x^{2}-3 x+\frac{9}{4}=6$