Fear Factor
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Imaginary combinations
Discriminants and the Quadratic Formula
100

What is the equation in standard form if the roots are 1 and 2?

x2 - 3x + 2 = 0

100

Simplify i8.

1

100

Simplify (2 + i) + (3 + 2i)

5 + 3i

100

Find the value of the discriminant and the number and type of roots:

2x2 - 8x + 6 = 0

16, 2 real

200

What is the equation in standard form if the roots are 3 and 3?

x- 6x + 9 = 0

200

Simplify i729.

i

200

Simplify (8 + 2i) + (8 - 2i)

16

200

Find the value of the discriminant and the number and type of roots: 8x2 - 4x + 12 = 0

-368, 2 imaginary

300

What is the equation in standard form if the roots given are 0 and -7?

x2 + 7x = 0

300

Simplify the square root of -9.

3i

300

Simplify (7 + 3i) - (4 - 3i)

3 + 6i

300

Use the quadratic formula to solve:

x2 + 2x + 1 = 0

x = -1

400

Solve the function by factoring:

x2 + 6x + 8 = 0

x = -4, x = -2

400

Simplify the square root of -50.

5i times the square root of 2

400

Simplify (2 + 2i)(2 + 3i). **Use box method if it helps!

-2 + 10i

400

Solve using the quadratic formula:

x2 + 7x + 8 = 0

x = -7 plus or minus the square root of 17 all over 2

500

Solve by factoring:

x2 - x - 20 = 0

x = 5, x = -4

500

Simplify the square root of -450

15i times the square root of 2

500

Simplify (2i)(8i)(7i)

-112i

500

Solve using the quadratic formula:

12x2 + 9x - 2 = 0

x = -3 plus or minus i root 71 all over 8

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