Question

The coefficient of y in the expansion of (5- y)square + 6 (6-y ) is

Answer 1

Answer: coffecient of y is - 16 when we put on the identity on the first braket of (a+b )^2

We will get - 10y and from second bracket we will get - 6y then we will add them then the ans will be - 16

Step-by-step explanation