Quadratic Formula
4b^2 + 8b + 7 = 4
- 1/2, -3/2
sqrt(45p^2)
3psqrt(5)
x^2 + 2x - 24 = 0
x = - 6, 4
y = - 2
4x - 3y = 18
(3, - 2)
- 4x - 2y = - 12
4x + 8y = - 24
(6, - 6)
2x^2 - 3x - 5 = 0
5/2 , - 1
sqrt(125n)
5sqrt(5n)
x^2 - 13x + 40 = 0
x = 5, 8
- 3x - 3y = 3
y = - 5x - 17
(- 4, 3)
x - y = 11
2x + y = 19
(10, - 1)
5x^2 + 9x = - 4
- 4/5, - 1
sqrt(80p^3)
4psqrt(5p)
2x^2 + 2x - 4 = 0
x = 1, - 2
y = 6x - 11
- 2x - 3y = - 7
(2, 1)
- 2x - 9y = - 25
- 4x - 9y = - 23
(- 1, 3)
9n^2=4+7n
(7+-sqrt(193))/18
sqrt(28x^3y^3
2xysqrt(7xy)
3x^2 + 11x - 4 = 0
x = 1/3, - 4
- 4x + y = 6
- 5x - y = 21
(- 3, - 6)
8x + y = - 16
- 3x + y = - 5
(- 1, - 8)
2m^2 - 7m - 13 = - 10
(7 +- sqrt(73))/4
-4sqrt(192x)
-32sqrt(3x)
6x^2 + x - 12 = 0
x = -3/2, 4/3
- 5x + y = - 3
3x - 8y = 24
(0, - 3)
5x + y = 9
10x - 7y = - 18
(1, 4)