dhandedevansh dhandedevansh

30-10-2020
Mathematics

contestada

find the coefficient of x^2 in the expansion of (x-y) ^3.

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sqdancefan sqdancefan

30-10-2020

9514 1404 393

Answer:

-3y

Step-by-step explanation:

The expansion is ...

(x -y)³ = x³ -3x²y +3xy² -y³

The coefficient of x² is -3y.

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lizzyburk lizzyburk

30-10-2020

the answer is 3y hope it helped

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