factorize:
1) a³-a+b³-b
2) x²-y²+2y-1
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Answer:
ITS EASY
Step-by-step explanation:
(a)³ + (3)³
Applying identity
a³ + b³=(a+b)(a²-ab+b²)
= (a + 3) [(a)² + a×3 + (3)²]
= (a + 3) (a² + 3a + 9)
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