Quadratic Equations and Complex Numbers Test Review

Solve by factoring  $x^2+7x+12=0$  

• x=3,4

• x=-3,-4

• x=2,5

• x=-2,-5

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

Solve by factoring  $x^2-3x-40=0$  

• x= -8, -5

• x= 8, 5

• x= 8, -5

• x= -8, 5

Tags

CCSS.HSA.REI.B.4

Solve using the quadratic formula  $m^2-5m-14=0$  

• x= 7, -2

• x= -7, 2

• x=  $\frac{5\pm i\sqrt{31}}{2}$  

• x=  $\frac{-5\pm\sqrt{31}}{2}$  

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.4

Solve using quadratic formula  $4b^2+8b+7=4$  

•  $\frac{1}{2},\frac{3}{2}$  

•  $\frac{-8\pm i\sqrt{48}}{8}$  

•  $\frac{-8\pm4i\sqrt{3}}{8}$  

•  $-\frac{1}{2},\ -\frac{3}{2}$  

Tags

CCSS.HSA.REI.B.4

Solve by square roots  $\left(x-5\right)^2=81$  

•  $\pm\sqrt{86}$  

• 14, -4

•  $\pm\sqrt{56}$  

• 4, -14

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by square roots  $\left(x+1\right)^2=5$  

•  $-1\pm\sqrt{5}$  

•  $1\pm\sqrt{5}$  

•  $\pm2$  

•  $\pm\sqrt{6}$  

Tags

CCSS.HSA.REI.A.2

CCSS.HSA.REI.B.4

Solve by completing the square  $p^2+14p-38=0$  

•  $\pm\sqrt{94}$  

•  $\pm\sqrt{80}$  

•  $-7\pm\sqrt{38}$  

•  $-7\pm\sqrt{87}$  

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve by completing the square  $k^2-12k+23=0$  

•  $-6\pm\sqrt{13}$  

•  $-6\pm\sqrt{23}$  

•  $6\pm\sqrt{13}$  

•  $6\pm\sqrt{23}$  

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

 $i=$  

•  $-1$  

•  $\sqrt{-1}$  

• 0

• 1

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

 $i^2=$  

•  $-1$  

•  $\sqrt{-1}$  

• 0

• 1

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2