resolve into factors X3+9Y3+(X+Y)3
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Answer:
= x³ - 3x2y + 3xy² - 9y³
Step-by-step explanation:
= ((x³)-9.(73)-3xy•(x-y)
={(x³) - 32y³) - 3xy (x- y)
= x³-3x2y+3xy²-9y³ is not a perfect
cube
= final result :x³ - 3x2y + 3xy²- 9y³
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