Solving Quadratic Equations using Any Method

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

Tags

CCSS.HSA-REI.B.4B

Solve: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

Tags

CCSS.HSA-REI.B.4B

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Tags

CCSS.HSA-REI.B.4B

Solve:

2x²+6x=7

• 
• 
• 

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve: x² = 16

• ± 4

• ± 8

• 4

• 8

Tags

CCSS.8.EE.A.2

Solve: -5x² = -50

• ± 5

• ± 10

• ± √10

• -10

Tags

CCSS.8.EE.A.2

Solve: (x - 2) ² = 49

• 9 or -5

• ± 9

• ± 5

• ± 7

Tags

CCSS.HSA-REI.B.4B

Solve.

(2x - 4)² = 16

• x = 4

• x = 10

• x = -2

• x = 0, 4

Tags

CCSS.HSA-REI.B.4B

What are the solutions to 2(x−7)² = 32 ?

• 7±√32
• ±√65
• 3 and 11
• -1 and 15

Tags

CCSS.HSA-REI.B.4B

x² = 8

• x = ±4
• x = ±2√2
• x = ±4√2
• x = ±√4

Tags

CCSS.8.EE.A.2