simplify(147+1/42)^2 -(147-1/42)^2
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Answered by
0
Answer:
very complicated try it by this formula -
a²-b²= (a+b) (a-b)
Answered by
4
Answer:
(a+b)^2-(a-b)^2=4ab
4*147*(1/42)
2*7
answer 14
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