For binomials of the form (x - y)^n, explain how to determine the sign of a term without writing out the entire expansion.

Answer with explanation:

We know that the (p+1)th term of a binomial is given by :-

Similarly we can write pth term (where ) of by the above rule as :-

We can see that if p is a odd number then the term is negative and if p is a even number then the term is positive.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square

you'll just earn points here

step-by-step explanation: