solve using identity 139²-138²
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Answered by
4
(139+138)(139-138)
277×1=277
hope it helps
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277×1=277
hope it helps
please click as brainliest
Answered by
1
a^2-b^2=(a+b)(a-b)
=(139+138)(139-138)
=(277)(1)
=277
=(139+138)(139-138)
=(277)(1)
=277
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