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In the lcm of 3a^2b^4c^5 and 7a4bc^2 what is the exponent on the b? 1, 4, 5, 6 HELP

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3 votes
The answer to this question is 4. The lowest common multiple of b^4 and b is b^4.
User BenTrofatter
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That would be 4   ( lcm of b and b^4  is b^4)
User George Powell
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