solving quadratic formula by quadratic formula and square roots

square roots

100

what is the square root of -9 

Does not exist (imaginary number)

200

what is the square root of 192 

14

300

solve by using the square root :

 2x²+9=1 

x= 2

x = -2

400

what is the square root of 121?

11

500

solve by using the square root:

5x²-3=42

x = -3

x = 3

easy quadratic formula

100

solve using the quadratic formula :

-x ² +2x=1   

1

200

solve using quadratic formula :

-2x²+3x=4x-15 

x=-3

x = (5/2)

300

solve by using the quadratic formula:

x²+6x+5=0 

x=-5,-1 

400

solve using the quadratic formula: 

-3x²+22x-7=0 

x1= 1/3

x2=7

500

solve by using the qauadratic formula:

6x²-3x-18=0

x=-(3/2)

x2=2

Factoring (box method)

100

Solve the following by factoring:

X²+4X=12

x= -6

x = 2

200

Solve the following by factoring:

2X²-X-6 = 0

x = 4

x = -3

300

Solve the following by factoring:

X²-2x-15=0

x = -3

x = 5

400

Solve the following by factoring: 

2x²-6x-8=0 

x = -1

x = 4

500

Solve the following by factoring:

x'+3x''-7=-x'-3x''+9

x = -2

x = 8

hard quadratic formula

100

solve using he quadratic formula : 

x² – 7x – 18 = 0

x = -2

x = 9

200

solve using the quadratc formula:

x² + 3x – 4 = 0

x= -4,1 

300

solve using the quadratic formula: 

m²-5m-14=0 

x=7,-2

400

solve using the quadratic formula: 

2m² + m-10= -m +2

x=(2,-3)

500

solve using the quadratic formula: 

k² − 31 − 2k = −6 − 3k² − 2k

x= 5/2, -5/2

Riddles

100

A farmer has 17 sheep and all but 9 die.How many are left alive?

9

200

I come in different shapes and sizes. Part of me are curves, others are straight. You can put me anywhere you like, but there is only one right place for me. What am I?

a puzzle piece 

300

I'm red and I can be green or yellow,

what am I?

an apple 

400

what hired killer never goes to jail?

an exterminator

500

you can carry it everywhere you go, and it does not get heavy.what is it?

your name