(3a+5b+2c) (3a-5b+2c)
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Answer:
6a + 10b
Step-by-step explanation:
– 3a + 5b – 2c - (3a – 5b + 2c )
= -3a + 5b - 2c - 3a + 5b + 2c
= -6a + 10b [-2c & +2c get cut]
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