Question

Find the value of 407×393 by suitable identity

Answer 1

407 × 393
_______________

(400+7) × (400 -7) 
_______________
By Identity  $a^2 -b^2 = (a+b)(a-b)$
__________________

$(400)^2 - (7)^2$

160000 - 49

159951



i hope this will help you


-by ABHAY

Answer 2

hii viewer here's the answer to the given question

it's in the form of (a+b).(a-b)
(400+7).(400-7)
so the given formula is a^2-b^2
400^2-7^2
16000-49
159951

hope ull get the answer and mark as brainliest one