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Complex Numbers
Square Roots
Quadratic Formula
Factoring
Completing the Square
100
(-6 - i) + (2 - 3i)
-4 - 4i
100
Solve for x in the following quadratic equation using the square root method: 4x^2 = 400
x = 10, x = -10
100
What is the quadratic formula?
x = -b +- √(b^2 - 4ac)/2a
100
Solve for x by factoring x^2 - 6x - 27 = 0
x = 9, x = -3
100
Solve for x in the following quadratic equation by completing the square x^2 + 6x = -8
x = -2, x = -4
200
(8 + i) - (-2 - 2i)
10 + 3i
200
Solve for x in the following quadratic equation using the square root method: 3 - 4x^2 = -85
x = 4.69, x = -4.69
200
Solve for x in the following quadratic equation using the quadratic formula: 2x^2 + 9x + 4 = 0
x = -1/2, x = -4
200
Solve for x by factoring 6x^2 - 12x - 18 = 0
x = 3, x = -1
200
Solve for x in the following quadratic equation by completing the square x^2 - 8x + 16 = 25
x = -1, x = 9
300
(15 + 3i)(4 - 15i)
(105 - 213i)
300
Solve for x in the following quadratic equation using the square root method: 3x^2 + 28 = 1
x = 3i x = -3i
300
Solve for x in the following quadratic equation using the quadratic formula 4x^2 - 15 = 17x
x = 5, x = -3/4
300
Solve for x by factoring 6x^2 + 7x - 5 = 0
x = -5/3, x = 1/2
300
Solve for x in the following quadratic equation by completing the square: 2x^2 - 8x = 10
x = 5, x = -1
400
4/(-3 - 6i)
-4/15 + (8i)/15
400
Solve for x in the following quadratic equation using the square root method: (7x + 5)^2 = 10
x = (√10 - 5)/7 x = (-√10 - 5)/7
400
Solve for x in the following quadratic equation using the quadratic formula x^2 - 4x = -20
x = 2 + 4i, x = 2 - 4i
400
Solve for x by factoring. 12x^2 + 5x - 2 = 0
x = -2/3, x = 1/4
400
Solve for x in the following quadratic equation by completing the square. x^2 + 6x + 11 = 0
x = -3 +i√2, x = -3 - i√2