21-12-2018
Mathematics

contestada

Please help on this one ?

Please help on this one class=

Respuesta :

sqdancefan sqdancefan

04-01-2019

Answer:

A

Step-by-step explanation:

The expansion of (x +y)⁴ is ...

... x⁴ +4x³y +6x²y² +4xy³ +y⁴

The expansion coefficients are 1, 4, 6, 4, 1; the sum of exponents is always 4, and there are 5 terms.

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