5abc-18a2bc from 20abc+12ab2c-4a2bc
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2
Step-by-step explanation:
(20abc+12ab2c-4a2bc) - (5abc-18a2bc)
= 20abc - 5abc + 12ab^2c +18a^2bc - 4a^2bc
= 15abc + 12ab^2c + 14a^2bc
Answered by
3
Answer:
15abc+12ab2c+14a2bc
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