what is the coefficient of x^2 in -3x^3+9x/7
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0
Answer:
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Step-by-step explanation:
The coefficient of x^7 in the expansion of (1 - x^4 ) (1 + x)^9 is equal to
Answered by
0
Answer:
-3x+9x/7
Step-by-step explanation:
We have removed x^2 from - 3x^3+9x/7
So, we have got - 3x+9x/7
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