find the answer please
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Answered by
1
use (a-b) ²=a²+b²-2ab
a=200 ,b=2
so 198 square =(200)^2+(2)^2-2*20*2
=40000+4-80=39924
a=200 ,b=2
so 198 square =(200)^2+(2)^2-2*20*2
=40000+4-80=39924
Answered by
0
(200-2)^2
= 200^2+2×200×-2+2^2
= 40000-800+4
=39204
= 200^2+2×200×-2+2^2
= 40000-800+4
=39204
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