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m(m-1)=-25
We move all terms to the left:
m(m-1)-(-25)=0
We add all the numbers together, and all the variables
m(m-1)+25=0
We multiply parentheses
m^2-1m+25=0
a = 1; b = -1; c = +25;
Δ = b2-4ac
Δ = -12-4·1·25
Δ = -99
Delta is less than zero, so there is no solution for the equation
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