SOLUTION: The instructions say to solve each of the quadratic equations by factoring and applying the property ab=0 if and only if a=0 or b=0. The specific problem I need help with is: x^

Algebra ->  Equations -> SOLUTION: The instructions say to solve each of the quadratic equations by factoring and applying the property ab=0 if and only if a=0 or b=0. The specific problem I need help with is: x^      Log On


   

Question 345300: The instructions say to solve each of the quadratic equations by factoring and applying the property ab=0 if and only if a=0 or b=0. The specific problem I need help with is:
x^2=15x
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2=15x Start with the given equation.


x%5E2-15x=0 Subtract 15x from both sides.


x%28x-15%29=0 Factor out the GCF 'x'.


x=0 or x-15=0 Use the zero product property (that's given in the problem)


x=0 or x=15 Add 15 to both sides in the second equation.


So the solutions are x=0 or x=15


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Jim