Solving Quadratics

Solving Quadratics

Multiple Choice

What is this formula?

• This is the speed of light formula.

• This is the quadratic formula.

• This is sus

• This is scary.

Multiple Choice

Determine the values of

a, b, and c for

the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 8, b = 4, c = -3

Multiple Choice

Use the quadratic formula to solve 2x² + 2x - 12?

• -2, 3
• 2, 3
• 2, -3
• -2, -3

Square Root Method

Square Root Method

Multiple Choice

x² = 16

• ± 4
• ± 8
• 4
• 8

Multiple Choice

x² + 4 = 68

• ± 8

• ± √8

• 8

• ± 64

Multiple Choice

(x - 2) ² = 9

• ± 3

• 5 or -1

• -5 or 1

• ± 9

Multiple Choice

(x + 1) ² -25

• ± 5

• 4 or -6

• -4 or 6

• ± 4

Multiple Choice

Solve
(x+3)²-5 = 9

• -3±√14
• 3±√14
• ±11
• ±5

Multiple Choice

What are the solutions: (x-4)(x-5)

• x = -4 and x = -5
• x = 20 and x = -9
• x = 4 and x = 5
• x = -4 and x = 5

Multiple Choice

What are the solutions: (x-4)(7x+2)

• x = -1 and x = -7/8
• x = 4 and x = -2/7
• x = -4 and x = 2/7
• x = 4 and x = -7/2

Multiple Choice

Solve     (x+5)(2x-3)

• -1.5 or 5
• No Solution
• -5 or 1.5
• 0.7 or 5