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(x - 2)(x - 10) = 0
x = 2 atau x = 10
b) 3x² + 10x + 36 = 0
tidak dapat difaktorkan, cba cek lg soalnya
c) kayaknya soalnya gini:
2x² + 7x + 5 = 0
(2x + 5)(x + 1) = 0
x = - 5/2 atau x = - 1