Deena145 Deena145

01-09-2014
Mathematics

Answered

Anyone know how to do this kind of algebra?
Compute the discriminants of the next two quadratic equations. Compare the result in (A) to that in (B). What do you observe from the comparison?
(A) 3x^{2} + 5x+ 1 = 0
(B) 3x^{2} −5x+ 1 = 0
Can someone explain this one?

Answer :

konrad509 konrad509

01-09-2014

[tex]\Delta_A=5^2-4\cdot3\cdot1=25-12=13\\ \Delta_B=(-5)^2-4\cdot3\cdot1=25-12=13\\[/tex]

Both discriminants are equal.

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