Squares and Square Roots Equations

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

What is this?

• 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

Which method is MOST EFFICIENT to solve:
8x²  -  6  = 0

• Square Root Method

• Greatest Common Factor (GCF)

• Complete the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Can this quadratic be solved by BOTH square root method AND difference of squares?
16x² - 25 = 0

• Yes!

• No - just square root method

• No - just difference of squares method

Tags

CCSS.HSA-REI.B.4B

• x = 12
• x = 24
• x = 144
• x = 121

Tags

CCSS.8.EE.A.2

• x = 12
• x = 24
• x = 144
• x = 121

Tags

CCSS.8.EE.A.2

Solve the square root equation:

• A

• B

• C

• D

Tags

CCSS.HSA.REI.A.2

• x = 5
• x = -6
• x = 14
• x = -1

Tags

CCSS.HSA.REI.A.2

• x = 81
• x = -9
• x = 9
• x = -81

• x = 49
• x = 53
• x = 45
• x = 18