Question

find the product of (a+b) (a²-ab+b²) and evaluate the result for a =1 and b=1​

Answer 1

(x+m)

2

−(x+n)

2

=(m−n)

2

. Factor the left side of the equation as the difference of two squares.

(x+m−x−n)(x+m+x+n)=(m−n)

2

(m−n)(2x+m+n)=(m−n)

2

Since, m



=n , 2x+m+n=m−n,x=−n ,