Question

Evaluate using identities.

7.5 x 6.5​

Answer 1

Answer:

hope it helps you friend.

Answer 2

The value of 7.5 x 6.5​ = 48.75

Step-by-step explanation:

We have,

7.5 x 6.5​

To find, 7.5 x 6.5​ = ?

∴ 7.5 x 6.5​

= (7 + 0.5)(7 - 0.5)

Using identity,

$(a+b)(a-b)=a^{2}-b^{2}$

$=7^{2}-0.5^{2}$

= 49 - 0.25

= 48.75

∴ 7.5 x 6.5​ = 48.75

Hence, the value of 7.5 x 6.5​ = 48.75