How do you solve #x^ { 2} - x - 1= ( x - \frac { 1} { 2} ) ^ { 2} - \frac { 5} { 4}#?
2 Answers
Feb 2, 2017
Explanation:
First, you would expand the square
that is an identity and there are
Feb 2, 2017
All values of
Explanation:
Expand the quadratic on the right hand side.
Combining like terms, we find that
But, of course, this just means that