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3x - 2 = -2x + 18
3x + 2x = 18 + 2
5x = 20
x = 4
2x² - 10x + 14 = 3x - 6
2x² - 10x - 3x + 14 + 6
2x² - 13x + 20
(2x²-8x)-(5x + 20)
2x(x -4) -5 ( x -4)
(x -4) (2x -5)
nilai x nya
x-4 = 0
x = 4
dan
2x -5 = 0
2x = 5
x = 5/2