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- 2x + 4 = 0
2)a. - 5x + 6 = 0 -2 + (-3) = -5
- 2x-3x+6=0 -2 x -3 = 6
( - 2x) - (3x+6) = 0
x(x-2) - 3(x-2) =0
(x-2) (x-3) = 0
jadi , himpunan selesaian = {2,3}
b) HP = {-5,3}
c) HP = {2,6}