evaluate 205 * 192 using identity
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2
This is ur ans hope it will help you in case of any doubt comment below
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Harshit91981:
isn't more difficult
I don't think so
this is most usable in these kind of questions
U can use (x+a)(x+b)
yess its right
Answered by
5
205*192
(200+5)(200-8)
using (x+a)(x+b)=x²+(a+b)x+ab
x=200,a=5,b=-8
so-------
200²+(5-8)200+(5)(-8)
40000+(-3)200-40
40000-600-40
40000-640
=39360
If you like my answer mark is as brainliest
Thanks
(200+5)(200-8)
using (x+a)(x+b)=x²+(a+b)x+ab
x=200,a=5,b=-8
so-------
200²+(5-8)200+(5)(-8)
40000+(-3)200-40
40000-600-40
40000-640
=39360
If you like my answer mark is as brainliest
Thanks
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