Differentiation: The derivative
The notion of derivative
The graph of the quadratic function #y=x^2+2\cdot x-2# is shown below.
At what value of #x# is the derivative of this function equal to #0#? Simplify your answer as much as possible.

At what value of #x# is the derivative of this function equal to #0#? Simplify your answer as much as possible.
| #x=# |
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