How do you solve #2x²-x+8=0#?
3 Answers
See a solution process below:
Explanation:
We can use the quadratic equation to solve this problem:
The quadratic formula states:
For
Substituting:
The square root of -1 or
Substituting gives the solution set as;
No real roots
Explanation:
Use the improved quadratic formula (Socratic, Google Search).
Since D < 0, there are no real roots.
There are 2 complex roots:
See below..
Explanation:
Let's complete the square:
No real roots as negative square root, although you could use