Question

write the formula which is given below

Answer 1

vi) (a+b) (a-b)
vii)

Answer 2

vi. (a^2 - b^2 ) = (a+b)(a-b)
vii. (a^3 + b^3) = (a+b)(a^2-ab+b^2)
viii.(a^3-b^3) = (a-b)(a^2+ab+b^2)