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Quadratic Formula
Radical Expressions
Factoring
Substitution
Elimination
100

4b^2 + 8b + 7 = 4

- 1/2, -3/2

100

sqrt(45p^2)

3psqrt(5)

100

x^2 + 2x - 24 = 0

x = - 6, 4

100

y = - 2

4x - 3y = 18

(3, - 2) 

100

- 4x - 2y = - 12

4x + 8y = - 24

(6, - 6) 

200

2x^2 - 3x - 5 = 0

5/2 , - 1

200

sqrt(125n)

5sqrt(5n)

200

x^2 - 13x + 40 = 0

x = 5, 8

200

- 3x - 3y = 3

y = - 5x - 17

(- 4, 3) 

200

x - y = 11

2x + y = 19 

(10, - 1) 

300

5x^2 + 9x = - 4

- 4/5, - 1

300

sqrt(80p^3)

4psqrt(5p)

300

2x^2 + 2x - 4 = 0

x = 1, - 2

300

y = 6x - 11

- 2x - 3y = - 7

(2, 1)

300

- 2x - 9y = - 25 

- 4x - 9y = - 23


(- 1, 3) 

400

9n^2=4+7n

(7+-sqrt(193))/18

400

sqrt(28x^3y^3

2xysqrt(7xy)

400

3x^2 + 11x - 4 = 0

x = 1/3, - 4 

400

- 4x + y = 6

- 5x - y = 21

(- 3, - 6)

400

8x + y = - 16

- 3x + y = - 5

(- 1, - 8) 

500

2m^2 - 7m - 13 = - 10

(7 +- sqrt(73))/4

500

-4sqrt(192x)

-32sqrt(3x)

500

6x^2 + x - 12 = 0

x = -3/2, 4/3

500

- 5x + y = - 3

3x - 8y = 24

(0, - 3) 

500

5x + y = 9 

10x - 7y = - 18

(1, 4)