what is the coefficient of x^2y^3 in the expansion of (2x+y)^5? A. 2 B. 5 C. 40 D. 80 E. it does not exist
1 answer:
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Answer:
5
Step-by-step explanation:
reminder of rules for division
• If signs are the same then positive result
• If signs are different the negative result
+ 7 ( signs of division are different )
= - 2 + 7
= 5
