Simplifying Radicals
Simplify: squareroot 27
3 sqr 3
Solve by taking the square root: x2 = 100
x = 10, -10
Solve this quadratics by factoring.
x2 + 2x - 3 = 0
x2 + 2x - 3 = 0
= (x-1)(x+3) = 0
x = 1 or x = -3
Simplify: sqr80
4 sqr5
Solve this equation by taking square roots.
x2 + 1 = 26
x2 = 25
x= 5, -5
Solve this quadratic by factoring:
6x2 - 15x = 0
x = 0, x=5/3
Simplify: sqr 175
5 sqr7
Solve for x using the square root method.
2x^2+10=210
x = 10, -10
Solve this quadratic equation by factoring.
X2 + 16 = 10x
x2 - 10x + 16 =0
(x-2)(x-8)
x = 2 or x = 8
Simplify: sqr245
7 sqr5
Solve this equation by taking square roots.
(x-4)2 - 16 = 0
(x-4)2 = 16
x- 4 =± 4
x = 0 or 8
Solve this quadratic by factoring:
2x2 -11x = 21
x = -3/2, 7
Simplify: sqr384
8 sqr6
2(x + 1)2 = 18
x = 2, -4
Solve this quadratic by factoring:
3x2 + 5 = -8x
x = -5/3, -1