If m is equal to minus 2 and n is equal to 2 fine the values of m square + 7 square - 2 MN
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m = -2 , n = 2
m²+7²-2mn = (-2)²+7²-2*(-2)*2 = 4+49+8 = 61
m²+7²-2mn = (-2)²+7²-2*(-2)*2 = 4+49+8 = 61
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girijajayakumar:
it is wrong answer is 16
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