Math, asked by manaspawar, 8 months ago

solve by factorisation method​

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Answered by mbhandaridey
0

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Answered by DrNykterstein
1

===> 7m² - 63 = 0

===> 7(m² - 9) = 0

===> m² - 9 = 0

===> m² - 3² = 0

===> (m + 3)(m - 3) = 0

m = 3 or m = -3

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