Shivansh P.

asked • 07/31/15

For the given term, find the binomial raised to the power, whose expansion it came from: 10(4x)^2(-y)^3.

a. (4x-y)5
b. (5x+y)2
c. (x+√(5/3) y)4
d. (4x+y)5

1 Expert Answer

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THOMAS F. answered • 07/31/15

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The exponents of the terms are x^2 and y^3; the sum of the exponents is thus 5. This has to match the term being expanded so that limits the choices to a or d.  The negative sign in front of y would indicate that the choice is a.
 
 
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