Question

8. Which of the following
is not true?
O (a + b) (a - b) = a2 - b2
O (a + b)2 = a2 + 2ab + b2
O O O
(a-b )2 = a2 - 2ab-b2
O (a-b )2 = a2 - 2ab + b2​

Answer 1

Answer:

a² -2ab - b² is not true in this

Answer 2

(a-b )2 = a2 - 2ab-b2