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k*k*(1-k)= 150= 5*5*6k = -5-5*-5*6=150
Why switch from m to x?
Oh..
m should be equal to -5m² -m³= (-5)² - (-5)³= 25-(-125)=25+125=150
That's only one of three solutions.
Ok. Doesn't matter so what?
@@madurappankalyanaraman8015 It may not matter to you, but it absolutely does matter to anyone wanting to find the solutions for m, which is the entire point of the video.
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k*k*(1-k)= 150= 5*5*6
k = -5
-5*-5*6=150
Why switch from m to x?
Oh..
m should be equal to -5
m² -m³= (-5)² - (-5)³
= 25-(-125)
=25+125=150
That's only one of three solutions.
Ok. Doesn't matter so what?
@@madurappankalyanaraman8015 It may not matter to you, but it absolutely does matter to anyone wanting to find the solutions for m, which is the entire point of the video.