Question

Using identity (a+b)(a-b)is equal to (a2-b2) evaluate the following 10.8x9.2

Answer 1

=10.8×9.2
=(10+0.8)(10-0.8)
USING (A+B)(A-B)=A^2-B^2
=10^2-0.8^2
100-0.64
=99.36

Answer 2

Answer:

your answer is in the attachment given above