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-4mx-4m=x(m+2)-6
-4m(x+1) = (m+2)x - 6
-4m(x+1) - (m+2)x + 6 = 0
-4m(-2+1) + 2 (m+2) + 6 = 0
4m + 2m + 4 +6 = 0
6m + 10 = 0
6m = -10
m = - ¹⁰/₆
m = - 1 ¹/₃