Question 1207450
basically, you show the expression of one root times the other root and then show that it simplifies to c/a.


see my worksheet below.


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the distributive law states that (a + b) * (a - b) equals:
a * (a - b) + b * (a - b) which equals:
(a^2 - ab) + (ab - b^2)
which simplifies to:
a^2 - b^2