SOLUTION: Find the solutions of the equation.
1/2x^2-x+5=0
A) 1 [+ or -] √9i
B) 1 [+ or -] √11i
C) -1 [+ or -] √9i
D) -1 [+ or -] √11i
Algebra.Com
Question 668998: Find the solutions of the equation.
1/2x^2-x+5=0
A) 1 [+ or -] √9i
B) 1 [+ or -] √11i
C) -1 [+ or -] √9i
D) -1 [+ or -] √11i
Found 2 solutions by jim_thompson5910, MathLover1:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Use the quadratic formula to solve for x
or
or
or
So the two solutions are or
For some strange reason, the book isn't showing the full simplified answers. The answer of those choices given is or (so either A or C -- Note: the 'i' term is NOT in the square root)
Why the book did not simplify the square root of 9, I have no clue.
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
... ......we can write as
......we can write as
...as you know
so, your answer is: A
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