scolen231p7rzw3 scolen231p7rzw3
  • 30-04-2018
  • Mathematics
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help please..................thank you

help pleasethank you class=

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mkryukova19 mkryukova19
  • 30-04-2018
a²-b²=(a-b)(a+b)
100A²-49B²=10²A² - 7²B²= (10A-7B)(10A+7B)
Correct answer is A.
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