You can put this solution on YOUR website! .
the difference of 2 numbers is 3. If the difference of their squares is 15, what is the sum of the numbers ?
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= 15 ====> (x+y)*(x-y) = 15.
Now replace x-y by 3, according to the condition. You will get
3*(x+y) = 15 ===> x + y = = 5.
Answer. x + y = 5.
Solved.
There is NO any need to solve quadratic equation.
The solution should not be more complex than the problem requires. (Einstein)
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