Simplify:
(3x+4y)+(3x-4y)³
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27x³-16y³-108x²y-84y²x+3x+4y .......
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put on the formula of (a+b) cu. instead of (3x-4y) cu.
and then just add and subtract the same numbers having same constants.
and then just add and subtract the same numbers having same constants.
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