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m in (-oo:+oo)
m*((3*m+2)/5)+m*((2*m-1)/2) = 4 // - 4
m*((3*m+2)/5)+m*((2*m-1)/2)-4 = 0
(m*(3*m+2))/5+(m*(2*m-1))/2-4 = 0
(2*m*(3*m+2))/(2*5)+(5*m*(2*m-1))/(2*5)+(-4*2*5)/(2*5) = 0
2*m*(3*m+2)+5*m*(2*m-1)-4*2*5 = 0
16*m^2-m-40 = 0
16*m^2-m-40 = 0
16*m^2-m-40 = 0
DELTA = (-1)^2-(-40*4*16)
DELTA = 2561
DELTA > 0
m = (2561^(1/2)+1)/(2*16) or m = (1-2561^(1/2))/(2*16)
m = (2561^(1/2)+1)/32 or m = (1-2561^(1/2))/32
(m-((1-2561^(1/2))/32))*(m-((2561^(1/2)+1)/32)) = 0
((m-((1-2561^(1/2))/32))*(m-((2561^(1/2)+1)/32)))/(2*5) = 0
((m-((1-2561^(1/2))/32))*(m-((2561^(1/2)+1)/32)))/(2*5) = 0 // * 2*5
(m-((1-2561^(1/2))/32))*(m-((2561^(1/2)+1)/32)) = 0
( m-((1-2561^(1/2))/32) )
m-((1-2561^(1/2))/32) = 0 // + (1-2561^(1/2))/32
m = (1-2561^(1/2))/32
( m-((2561^(1/2)+1)/32) )
m-((2561^(1/2)+1)/32) = 0 // + (2561^(1/2)+1)/32
m = (2561^(1/2)+1)/32
m in { (1-2561^(1/2))/32, (2561^(1/2)+1)/32 }
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