Tuesday, March 25, 2014

Find the solutions of equation 25x^2-36=0?

This equation could be solved in many
ways.


One way is to notice that the given equation is a
difference of two squares that returns the special
products:



6)


We'll re-write the
equation:



0


We'll cancel each factor and we'll
get:




6




0




-6/5


Another way to solve this equation is to add 36 both
sides:



We'll
divide both sides by 25:



36/25



+-sqrt(36/25)



+-6/5


Any method you chose to solve, you'll
get the solutions of the equation

-6/5.

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