Question

Write the coefficient of y in the explain of ( 5 - y )² .​

Answer 1

Answer:

-10

Explanation:

(a+b)² = a² + 2ab + b²

Here

• a = 5. b = -y

So

• 2ab = 2*5*(-1)y = -10y

Therefore the coefficient of y is -10

Answer 2

Answer:

The coefficient of y is 2 as 5 - y are whole square then 5 and y have the same coefficient i.e. 2.

Explanation:

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