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Math

Answered

What is the numerical coefficient of xy in the expansion of (4x + 5y)²? *

1 point

40

-40

30

-30

Sagot :

FrancisRafaelFlorgo FrancisRafaelFlorgo

Answer:

40

Step-by-step explanation:

(4x + 5y)² = 16x² + 40xy + 25y²

so the numerical coefficient of xy is 40

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