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= 1/6 ( 3m + 2) 1/6 (3m - 2)
= 1/36 ( 3m + 2) (3m - 2)
b) p² - 2p + 4 = tak dapat difaktorkan
c) (1/9)n² - 1/25 = (1/3 n - 1/5) (1/3 x + 1/5) .... atau ...
= 1/15 (5n - 3) .1/15 ( 5n + 3)
= 1/225 (5n - 3) (5n + 3)