Solving Quadratics =)

Square Root Method 1

100

x²=49

x=7

x=-7

200

x²-4=12

x=4

x=-4

300

3x²+2=302

x=10

x=-10

400

x²+7=25

x=3sqrt(2)

x=-3sqrt(2)

500

36x²-25=0

x=5/6

x=-5/6

Square Root Method 2

100

b²=-9

x=3i

x=-3i

200

x²+6=-19

x=5i

x=-5i

300

-2r²-9=-1

x=2i

x=-2i

400

x²-12=-24

x=2sqrt(3)i

x=-2sqrt(3)i

500

-27x²+3=0

x=1/3

x=-1/3

Quadratic Formula 1

100

Find the values of a, b, and c.

3x²+5x+7=0

a=3, b=5, c=7

200

Find the values of a, b, and c.

x²-4x+8=0

a=1, b=-4, c=8

300

Solve.

x²+7x+10=0

x=-2

x=-5

400

Solve.

2x²-5x-3=0

x=3

x=-1/2

500

State the Quadratic Formula.

(No peeking!)

[Quadratic Formula]

Quadratic Formula2

100

Find the values of a, b, and c.

9x²+2x+5=0

a=9, b=2, c=5

200

Find the values of a, b, and c.

2x²-x-8=0

a=2, b=-1, c=-8

300

Solve.

5x²-30x+25=0

x=1

x=5

400

Solve.

2x²-3x-5=0

x=-1

x=5/2

500

Solve.

5x²-x+5=0

See board.

Types of Solutions

100

Real Solution(s) or NO Real Solution?

-9 inside the square root.

NO Real Solution.

200

What is the number inside the square root? Solution(s) or No Real Solution(s)?

x²+2x-15=0

64

Two Solutions

300

What is the number inside the square root? Solution(s) or No Real Solution(s)?

5x²-4x-1=0

-4

No Real Solution

400

What is the number inside the square root? Solution(s) or No Real Solution(s)?

x²-4x-3=0

28

Two Real Solutions

500

What is the number inside the square root? Solution(s) or No Real Solution(s)?

3x²-8x+4=0

16

Two Real Solutions