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m in (-oo:+oo)
(1/9)*(2*m+16) = (1/3)*(2*m+4) // - (1/3)*(2*m+4)
(1/9)*(2*m+16)-((1/3)*(2*m+4)) = 0
(1/9)*(2*m+16)+(-1/3)*(2*m+4) = 0
1/9*(2*m+16)-1/3*(2*m+4) = 0
1/9*(2*m+16)-1/3*(2*m+4) = 0
4/9-4/9*m = 0
4/9-4/9*m = 0
4/9-4/9*m = 0 // - 4/9
-4/9*m = -4/9 // : -4/9
m = -4/9/(-4/9)
m = 1
m = 1
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