solving quadratic formula by quadratic formula and square roots

easy quadratic formula

100

solve using the quadratic formula :

-x ² +2x=1   

 

 

1

200

solve using quadratic formula :

-2x²+3x=4x-15 

x=(-3,5/2)

300

solve by using the quadratic formula:

x²+6x+5=0 

x=-5,-1 

400

solve using the quadratic formula: 

-3x²+8x+7=0 

x= 4+- square root of 5/3

500

solve by using the qauadratic formula:

6x²-15 = 27 

x=+/- square root 7

medium quadratic formula

100

solve using the quadratic formula:

x²-6x+9

x=3

200

 solve using the quadratic formula :

2x²+4x-6

x=-3 , x=1

300

solve using quadratic formula:

b² - 4b +4=0 

x=2

400

solve using the quadratic formula: 

2x²-3x-5=0 

x=(5/2,-1) 

500

solve using the quadratic formula: 

x²+4x+3=0

x=(-1,-3)

hard quadratic formula

100

solve usignt he qudaratic formula : 

x² – 4x – 8 = 0

x= 2+- 2 square root of 3 

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 + 2m-12=0  

x=(2,-3)

500

solve using the quadratic formula: 

k² − 31 − 2k = −6 − 3k² − 2k

x= 5/2, -5/2

mystery questions

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 

Imaginary and Bonus

100

what is the square root of -9 

3i

200

what is the square root of -196 

14i

300

solve by using the square root :

 2x²+9=1 

x=+/- 2i 

400

what is the square root of 121?

11

500

solve by using the square root :

 4x²+15=-9 

x=+/- i squareroot of 6