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Discriminant
Solving Quadratics
Add/Subtract/Reduce Complex Numbers
Multiplying/Dividing Complex
Random
100
Find the discriminant and tell the types of solutions for 3x^2 + 5x - 2 = 0
What is 49, 2 real rational solutions
100

Solve: 4x2 + 9 = -80

What is (i sqrt(89) / 2) and (-i sqrt(89) / 2)

100
(2+3i) + (4+7i)
What is 6+10i
100
(3+2i)(5-i)
What is 17+7i
100

Given that a rocket's distance (ft) over time (sec) can be modeled by the following equation y=-x2+x+30

How far off the ground is the rocket before it is launched?

What is 30 ft?

200
Find the discriminant and tell what type of solutions for x^2 - 3x + 4 = 0
What is -7, 2 imaginary solutions
200

Solve: x2 - 8x + 40 = 6

What is 4+3i sqrt(2), 4-3i sqrt(2)

200
(5+6i) + (4-2i)
What is 9 + 4i
200
(6+2i)(6-2i)
What is 40
200

Given that a rocket's distance (ft) over time (sec) can be modeled by the following equation y=-x2+x+30

At what time does the reach its highest peak?

What is 0.5 seconds?

300
Find the discriminant and tell what type of solutions for 2x^2 - 3x + 4 = 8
What is 41, 2 real irrational solutions
300

Solve: x2 + 12x + 64 = -10

-6 + i sqrt(38), -6 - i sqrt(38)

300
(6+5i) - (3+2i)
What is 3+3i
300
(2+3i)(4+7i)
What is -13+26i
300

Given that a rocket's distance (ft) over time (sec) can be modeled by the following equation y=-x2+x+30

What is the largest height the rocket will travel?

What is 30.25 feet?

400
Find the discriminant and tell what type of solutions for -4x^2 = 5x + 6
What is -71, 2 imaginary solutions
400

Solve: 11x2 = -4x - 1

What is -2/11 + i sqrt(7) / 11, -2/11 - i sqrt(7) / 11


400

(2-7i) - (1-4i)

What is 1-3i

400

1/(2+3i)

What is (2-3i)/13

400

Given that a rocket's distance (ft) over time (sec) can be modeled by the following equation y=-x2+x+30

At what time does the rocket hit the ground?

What is 6 seconds?

500

Find the discriminate of the following quadratic equation. How many and what kind of solutions will this function have: 0=-3x2+6x-3

0, 1 real and unique solution

500

Solve: 6x2 + 2 = -4x

What is -1/3 + i sqrt(2) /3 , -1/3 - i sqrt(2) / 3

500
Reduce: i^90
What is -1
500

(5+3i)/(2-2i)

What is (1+4i)/2

500

Given that a rocket's distance (ft) over time (sec) can be modeled by the following equation y=-x2+x+30

Over what interval is the rocket 20 feet from the ground or closer?

(3 sec, 6 sec)