Question

Evaluate : (8.6)2 – (7.6)2​

Answer 1

Answer:

2

Step-by-step explanation:

(8.6)2 - (7.6)2

17.2 - 15.2

2

Hope it helps

Answer 2

Answer:

we know that

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

so

(8.6)^2 – (7.6)^2

=> (8.6)^2 – (7.6)^2 = (8.6 + 7.6) ( 8.6 - 7.6)

=> (8.6)^2 – (7.6)^2 = (16.2) ( 1)

=>(8.6)^2 – (7.6)^2 = 16.2