Unit 6 Review

Solve the following quadratic equation.

 $2x^2-60=0$  

•  $x=\pm30i$  

•  $x=\pm\frac{\sqrt{60}}{2}$  

•  $x=\pm\sqrt{30}$  

•  $x=\pm900$  

Tags

CCSS.8.EE.A.2

Solve the following quadratic equation.

 $3\left(x-4\right)^2-3=0$  

•  $x=3,5$  

•  $x=\pm\sqrt{5}$  

•  $x=-3,-5$  

•  $x=\pm\frac{\sqrt{3}}{3}+4$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation.

 $4\left(x+7\right)^2=48$  

•  $x=-19,5$  

•  $x=-7+2\sqrt{3},-7-2\sqrt{3}$  

•  $x=-5,19$  

•  $x=7+2\sqrt{3},7-2\sqrt{3}$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation.

 $\left(2x+3\right)\left(2x-7\right)=0$  

•  $x=\frac{3}{2},-\frac{7}{2}$  

•  $x=-\frac{2}{3},\frac{2}{7}$  

•  $x=-\frac{3}{2},\frac{7}{2}$  

•  $x=\frac{2}{3},-\frac{2}{7}$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation.

 $x^2+8x=-15$  

•  $x=-3,5$  

•  $x=-5,3$  

•  $x=3,5$  

•  $x=-5,-3$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation.

 $-2x^2-10x+28=0$  

•  $x=-2,7$  

•  $x=-7,2$  

•  $x=-10,28$  

•  $x=-28,10$  

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratic equation.

 $2x^2+3x-4=0$  

•  $x=\frac{-3\pm\sqrt{-23}}{4}$  

•  $x=\frac{-3\pm\sqrt{41}}{4}$  

•  $x=\frac{-3\pm23i}{4}$  

•  $x=\frac{-3\pm41i}{4}$  

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the following quadratic equation.

 $2x^2-2x-8=x^2$  

•  $x=-4,2$  

•  $x=-4,8$  

•  $x=-8,4$  

•  $x=-2,4$  

Tags

CCSS.HSA-REI.B.4B

Simplify the following expression.

 $\sqrt{-28}$  

•  $2i\sqrt{7}$  

•  $2\sqrt{7}$  

•  $7i\sqrt{2}$  

•  $7\sqrt{2}$  

Simplify the following expression.

 $2\sqrt{-25}$  

•  $-10$   

•  $7i$  

•  $10i$  

•  $-7$  

Tags

CCSS.HSN.CN.A.1