Alg 34 Lesson 4.5 Solve Quadratics by Graphing and Factoring

Which method would you use to solve this?

• graphing
• factoring
• square root
• quadratic formula

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

Which method would you use to solve this? 
4m² - 100 = 0

• graphing
• factoring
• square root
• quadratic formula

Solve
4m² - 100 = 0

• m=25, -25
• m=96
• m=5, -5
• m=-96

Which method would you use to solve this?
a² + 2a - 24 = 0

• graphing
• factoring
• square root
• quadratic formula

Solve
a² + 2a - 24 = 0

• a = -6, 4
• a = 6, -4
• a = 12, -2
• a = 8, -3

Solve
16a² - 9 = 0

• a = ^-3/₄, ³/₄ 
• a = ^-4/₃, ⁴/₃ 
• a = ^-9/₁₆, ⁹/₁₆ 
• a = ^-16/₉, ¹⁶/₉ 

Solve
x² + 13x + 12 = 0

• x = -12, -1
• x = 12, 1
• x = 13, 1
• x = -13, -1

Solve the equation by factoring:
x²-6x+8=0

• 2, 4
• -2, -4
• -2, 4
• 2, -4

What  are the solutions of this graph?

• -2 and 3
• -1/2 and -6
• -2 and -6
• 3 and -6