Evaluate using identities a)98X99 and b) 14 3 +(-6) 3 +(-8)3
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a)98X99
(100-2)X(100-1)
100(100-1)X-2(100-1)
10000-100-200+2
10000-300+2
9702
(100-2)X(100-1)
100(100-1)X-2(100-1)
10000-100-200+2
10000-300+2
9702
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