Solving Quadratics Concepts

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

Find the expression equivalent to (x-1)(x-9)

• x²+9

• x²-10x+9

• x²-10x-9

• x²+10x+9

Solve
(4a + 3)(4a - 3) = 0

• a = ^-3/₄, ³/₄ 

• a = ^-4/₃, ⁴/₃ 

• a = ^-9/₁₆, ⁹/₁₆ 

• a = ^-16/₉, ¹⁶/₉ 

What is another word for zeros?

• y-intercepts

• roots

• vertex

• axis of symmetry

Solve:
X² - 3 =6X + 10

• X = 7, -1

• X = -7, 1

• X = -7, -1

• No Solution

y = 2x^2 -x -3 factors into

• (2x+3)(x-1)

• (2x-3)(x-1)

• (2x-3)(x+1)

• (2x+3)(x+1)

Solve
a² + 2a - 24 = 0

• a = -6, 4

• a = 6, -4

• a = 12, -2

• a = 8, -3

Solve the following quadratics equation by completing the square... x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

Solve the following quadratics equation by completing the square...

x² - 6x + 2 = 0

• x = -3 ± √7

• x = 3 ± √7

• x = 7 ± √3

• x = -7 ± √3

Solve the following quadratics equation by completing the square... x² + 2x - 5 = 0

• x = -1 ± √6

• x = 1 ± √6

• x = 6 ± √1

• x = -6 ± √1