91Ó°ÊÓ

Solve the equation using quadratic formula.

$x(x+2)-5=0$

Solve the equation using quadratic formula.

$y(3y-1)-2=0$

Solve the equation using quadratic formula.

$\frac{1}{4}{c}^2-\frac{1}{3}c=\frac{1}{12}$

Solve the equation using quadratic formula.

$\frac{1}{9}{d}^2-\frac{1}{2}d=-\frac{1}{2}$

Solve the equation using quadratic formula.

$r^2+10r+25=0$

Solve the equation using quadratic formula.

$3u^2+7u-2=0$

Solve$c^2+12=0$.

Solve the equation using quadratic formula.

$25t^2-40t=-16$

Determine the number of solutions to each quadratic equation:

(a)$8m^2-3m+6=0$

(b)$5z^2+6z-2=0$

(c)$9w^2+24w+16=0$

(d)$9u^2-2u+4=0$

Determine the number of solutions to each quadratic equation:

(a) $b^2+7b-13=0$

(b) $5a^2-6a+10=0$

(c) $4r^2-20r+25=0$

(d)$7t^2-11t+3=0$