How to solve (21.8) power 2-(21.7)power 2
Answers
Answered by
0
Answer:
use identity
a^2 - b^2 = (a + b)( a - b)
21.8^2 - 21.7^2 = (21.8+21.7)(21.8-21.7)
= 43.5 * 10.1
= 439.35
Answered by
1
Answer:
a²-b²=(a+b)(a-b)
Hence, required solution is (21.8+21.7)(21.8-21.7)=(43.5)(0.1)=4.35
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