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The second method of solving quadratics is square root property,
If p2 = d then p =±d
There is a (potentially) new symbol that we have to define first in case you haven't seen it still. The symbol "± " is named as : "plus or minus" & i.e. exactly what this tells us. This symbol is shorthand which tells us that we actually have two numbers here. One is p =√d and the other is p = √- d .
It is a fairly simple property to use, however it can just used on a small portion of the equations which we're ever likely to encounter. Let's see some examples of this property.
We'll begin this section by defining just what a root or zero of a polynomial is. We say that x = r is a root or zero of a polynomial, P ( x) , if P ( r )= 0 . In other terms x=
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In the earlier section we looked at using factoring & the square root property to solve out quadratic equations. The problem is that both of these methods will not always work. Not
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