TEST REVIEW

Convert x² - 9x + 20 to factored form and solve.

• (x-10)(x+2); x = -2, 10

• (x+4)(x+5); x = -5, -4

• (x-4)(x-5); x = 4, 5

• Not factorable

Complete the Square
x² + 6x = 5

• (x + 3)² = 5

• (x + 6)² = 9

• (x + 3)² = 14

• (x + 6)² = 14

What is the value of the DISCRIMINANT of the following equation: 5x² - 6x - 8 = 0?

• - 196

• 124

• - 124

• 196

What is a ZERO (a.k.a. SOLUTION, ROOT) of this function: f(x) = x² + 15x + 54?

• x = 9

• x = 6

• x = - 15

• x = - 6

Which is the best (fastest/shortest) method you should use to solve this equation: 5x² = 45?

• Graphing

• Square Roots

• Completing the Square

• Quadratic Formula

Which of the following equations matches standard form of a quadratic?

• (x + a)(x + b) = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

Decide on the best method:

x² + 2x + 9 = 0

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Decide on the best method:
2x² - 7x + 2 = 0

• Square Root Method
• Factor Method
• Complete the Square
• Quadratic Formula

Decide on the best method:

x² + 2x - 3 = 0

• Square Root Method

• Factor Method

• Quadratic Formula

• Completing the Square

Solve x^2 - 3x - 4 = 0 using the quadratic formula.

•  x = 4 and -1
• x = -4 and -1
• x = 4 and 1
• x = -4 and 1