SOLUTION: Please show all work. Consider the quadratic equations: x^2-2=0 Solve quadratic equation above by a extracting square roots b completing the square c by applying the f

Algebra ->  Finance -> SOLUTION: Please show all work. Consider the quadratic equations: x^2-2=0 Solve quadratic equation above by a extracting square roots b completing the square c by applying the f      Log On


   

Question 1020078: Please show all work.
Consider the quadratic equations:
x^2-2=0
Solve quadratic equation above by
a extracting square roots
b completing the square
c by applying the formula
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
a) x%5E2=2
x=0+%2B-+sqrt%282%29
.
.
b)x%5E2-2=0
%28x%2B0%29%5E2=2
x%2B0=0+%2B-+sqrt%282%29
x=0+%2B-+sqrt%282%29
.
.
c)a=1
b=0
c=-2
x+=+%28-0+%2B-+sqrt%28+0%5E2-4%2A1%2A%28-2%29+%29%29%2F%282%2A1%29+
x+=+%28-0+%2B-+sqrt%28+8+%29%29%2F%282%29+
x+=+%280+%2B-+2%2Asqrt%28+2+%29%29%2F%282%29+
x+=+0+%2B-+sqrt%28+2+%29