Kitty613
Kitty613
26-10-2014
Mathematics
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Solve for 4x^2+81=36x using the quadratic formula
Answer :
konrad509
konrad509
26-10-2014
[tex]4x^2+81=36x\\ 4x^2-36x+81=0\\ (2x-9)^2=0\\ 2x-9=0\\ 2x=9\\ x=4.5[/tex]
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