Solving by factoring, radicals, operations with complex numbers

Simplify the following:  $\sqrt{216}$  

•  $6\sqrt{6}$  

• 6

•  $\sqrt{6}$  

•  $\sqrt{2}$  

Solve the following:  $2x^2+3x-9$  

• x= -3 and x= -1

• x= -10 and x=15

•  $x=\frac{\text{3}}{\text{2}}$  

• x= -3 and x= $\frac{3}{2}$  

Tags

CCSS.HSA-REI.B.4B

Simplify the following:  $3\ \sqrt{-49}$  

• 28i

• 21i

• 30

• 25

Tags

CCSS.HSN.CN.A.1

Add the following complex numbers: (5+3i)+(6-2i)

• 5-6i

• 11+2i

• 10+2i

• 11+i

Tags

CCSS.HSN.CN.A.2

Subtract the following complex numbers: (10-3i)-(2-5i)

• 8+2i

• 8-2i

• 8-8i

• 2-3i

Tags

CCSS.HSN.CN.A.2

Multiply the following complex numbers (1+3i)(2-4i)

• 15+3i

• 14+2i

• 12+3i

• 20+2i

Tags

CCSS.HSN.CN.A.2

Solve the following: x²-2x-35

• (x+5)(x-7)

• (x+2)(x+9)

• x= -5 , x=7

• x=3 , x=8

Tags

CCSS.HSA-REI.B.4B

Solve the following: 3x²-2x-5

• (3p-5)(p+1)

• x=3 , x=12

• x= 5/3 , x=-1

• (x-3)(x+12)

Tags

CCSS.HSA-REI.B.4B

Factor the following: 3x²-8x+4

• x=10 , x= 20

• (2x+4)(x+5)

• x=2 , x=10

• (3x-2)(x-2)

Factor the following: 2x^x+11x+5

• (2x+1)(x+5)

• (3x+2)(2x+3)

• x= 2 , x=1

• x=3 , x=10