SOLUTION: Find the set of values of x for which: x(x - 5) > 3(1 - x)
It's just that it's many years since i've done these equations and was looking for some help with the example abov
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-> SOLUTION: Find the set of values of x for which: x(x - 5) > 3(1 - x)
It's just that it's many years since i've done these equations and was looking for some help with the example abov
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Question 7702: Find the set of values of x for which: x(x - 5) > 3(1 - x)
It's just that it's many years since i've done these equations and was looking for some help with the example above.
Many Thanks
Ivan Answer by longjonsilver(2297) (Show Source):
So we have a u-shaped quadratic, which when plotted on a graph may/may not cross the x-axis: wherever it does cross, those points are the roots.
The question says (at least my version of it) "where is the quadratic equation greater than zero"... visualising the u-shape, this will be any value of x to the left of the left root and any value of x to the right of the right root.