Solve Quadratic Equations Using the Quadratic Equation

Solve using the Quadratic Formula:

15x² + 22x = −8

• x = −2/3, 4/5

• x = 2/3, −4/5

• x = 2/3, 4/5

• x = −2/3, −4/5

Solve the following quadratic equation...

x² + 13x + 36= 0

• x = -2

  x = -18

• x = -9

  x = -4

• x = -3

  x = -12

• x = -6

  x = -6

Solve using the Quadratic Formula:

x² + 6x + 9 = 0

• x = −3, 3

• x = −3

• x = 3

• No Solution

Using the graph solve the equation
-x²-2x+3=-5.

• {-3,-1}

• {-2,0}

• {-4,2}

• {-1,4}

Select the solutions to the equation

4x² + 11x + 7 = 0

• x = - 1.75

• x = 6

• x = - 1

• x = 1

Solve for x.  Round to the nearest hundredth if necessary.
x² = 8x - 7

• x = 1, 7

• x = -1, -7

• x = 1, -7

• x = -1, 7

Solve for x.  Round to the nearest hundredth if necessary.
4x² + 4x = 3

• x = .5, -1.5

• x = -.5, -1.5

• x = .5, -1.67

• x = -.5, 1.67

Solve for x.  Round to the nearest hundredth if necessary.
x² + 11x + 5 = -5

• x = -1, -10

• x = 1, 10

• x = 0, 11

• x = 0, -11

Solve

2x²+ 7x = -6

• x= 3/2 and x = 2

• x = -3/2 and x = -2

• x = 6 and x = 7

• x = -6 and x = -7

Solve:
 -2x² + 4x = 9

• (2 - i√14)/2   ,  (2 + i√14)/2

• (2 - i√-56)/2   ,  (2 + i√-56)/2

• (2 - i√-14)/2   ,  (2 + i√-14)/2

• (2 - √14)/2   ,  (2 + √14)/2