Question

find the value of 382−22216, using a suitable identity​

Answer 1

Step-by-step explanation:

Since a2 – b2 = (a + b) (a – b), therefore

382 – 222

= (38 – 22) (38 + 22)

= 16 × 60

So,

(382 - 222)/16

= (16 x 60)/16

= 60