evaluate one of the following (399)²
Answers
Answered by
2
(399)² =>(400-1)²
using (a-b)² = a²+b² -2ab
(400)²+(1)²-2(400)(1)
160000+1-800
160001-800 => 159201
hope this helps
using (a-b)² = a²+b² -2ab
(400)²+(1)²-2(400)(1)
160000+1-800
160001-800 => 159201
hope this helps
chandujadhav:
wrong your answer
Answered by
5
hi friend
here is your answer
(399)²
=(400-1)²
so we can evaluate it by the formula of (a-b)²=a²-2ab+b²
here a=400. b=1
(400-1)²
=(400)²-2(400)(1)+(1)²
=160000-800+1
=159201
so (399)²=159201
hope that this will help you
if you like my way of answering please mark as brainliest
n let me know if I can help you in future
thank you
-Sneha
here is your answer
(399)²
=(400-1)²
so we can evaluate it by the formula of (a-b)²=a²-2ab+b²
here a=400. b=1
(400-1)²
=(400)²-2(400)(1)+(1)²
=160000-800+1
=159201
so (399)²=159201
hope that this will help you
if you like my way of answering please mark as brainliest
n let me know if I can help you in future
thank you
-Sneha
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