Subtract: 4 2 – 3 + 5 2 – 8 + 7 – 10 18 – 3 – 11 + 5 – 2 2 + 5 2 and hence find the value of expression at p = 1and q = - 1.
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42-3+52-8+7-1018-3-11+5-22+52
=158-1065
=-907
This is the required answer
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