Question

what is the answer to this by using identity ?​

Answer 1

Answer:

=25/3

Step-by-step explanation:

we know that,

a^2-b^2=(a-b)(a+b)

Now, (6.25^2-1.25^2)/4.5

=(6.25+1.25)(6.25-1.25)/4.5

=7.5*5/4.5

=75*5/45

=25/3