Question

find the product of the following using identities
( 42 − 32)^2

plz help me with this answer

Answer 1

Answer:

The identity to be used here is -

(a-b) ^2 = a2 - 2ab + b2

(42 - 32)2 = 42^2 - 2×42×32 + 32^2

= 1764 - 2688 + 1024

= 2788 - 2688

= 100

Hope this helps