Precaculus 11 – Week 6

This week in precaculus 11 we learned how to solve Quadratic equations using factoring and the zero product law.

The zero product law is when axb=0, a=0 or b=0. So basically x can be anything that makes the equation equal to zero.

For example,

$x^2 -25 = 0$

Now we root -25, because it is negative we get +5 and -5. The equation will now look like this,

(x+5)(x-5)

x= (-9), 9

Basically, all we are doing is finding a way to make X cancel out all the numbers on its side of the equation.

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