Question

Using the identity (a + b) (a - b) = (a² – b²), evaluate the following 10/3 × 14/3​

Answer 1

Answer:

140/9 or 15.55..

Step-by-step explanation:

10/3×14/3. can be written as :

(12/3+2/3)(12/3-2/3)

By the identity (a+b)(a-b)=(a²-b²)

it will be :

(12/3)²-(2/3)²

= 144/9-4/9

=140/9

=15.55..

Therefore 140/9 is the answer which can be further written as 15.55..