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A zero of a function can help us to solve an equation. It can also help with optimization problems (such as when we find the zeros of the first or second derivative of a function). So, what...
When working with quadratic equations, the roots (solutions) can be either real or complex. It is helpful to know what signs to look for to tell when the solutions are real. So, when does a...
When working with quadratic equations, we often see one or two real solutions. However, it is also possible that a quadratic will have no real solution. So, when does a quadratic have no...