SOLUTION: Sir/Madam,
A pleasant day! Please help me understand how to solve this problem. Find the value of k so that the equation is:
2x^2+kx-15=0, has one root of 3
Thank you ve
Algebra.Com
Question 767354: Sir/Madam,
A pleasant day! Please help me understand how to solve this problem. Find the value of k so that the equation is:
2x^2+kx-15=0, has one root of 3
Thank you very much for your help!
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
I would use the quadratic formula:
---------------------------------
If one of the roots is , I can say:
Square both sides
answer
------------
I'll see if this works
and, also.
-------------
OK
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