Solving a quadratic equation/function by factoring

Solve:
x² - 49 = 0

• x = -7, x = 7
• x = -7
• x = 7
• x = -7, x = 1

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

Solve
x² + 9x + 20 = 0

• x = -2, x = -10
• x = -3, x = -4
• x = -4, x = -5
• x = -4, x = -6

Tags

CCSS.HSA-REI.B.4B

Solve

x² + 2x = 24

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Solve the equation using the zero product property.

3x(2x - 4) = 0

• x = -1/3 or x = -2

• x = 0 or x = 2

• x = 0 or x = -2

• x = -1/3 or x = 2

Tags

CCSS.HSA-REI.B.4B

Solve by factoring:

2x² + 4x - 48 = 0

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

Solve

16a² = 9

• a = ^-3/₄, ³/₄

• a = ^-4/₃, ⁴/₃

• a = ^-9/₁₆, ⁹/₁₆

• a = ^-16/₉, ¹⁶/₉

Find the zeroes:

f(x) = 8n² + 10n - 3

• n = ^-1/₈, ¹⁰/₃

• n = ⁴/₅, - 2

• n = ¹/₄, ^-3/₂

• n = 2, -12

Find the zeros of the quadratic function.

f(x) = 9x² + 3x

• x=1/3,0

• x=-1/3,0

• x=3,0

• x=-3,0

A quadratic function has zeros at x=-1/2 and x=2/3. Write the quadratic function in standard form.

• y=6x² - 5x - 2

• y=6x² - x - 2

• y=(2x+1)(3x-2)

• y=(x + 1/2)(x - 2/3)

Solve the quadratic equation.

12x² - 4x = 5

Select all correct solutions.

• x=1/2

• x=-1/2

• x=5/6

• x=6/5