(1)96^2+96×8+16 (2)9.9^2+1.98+0.01

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(1)96^2+96×8+16 (2)9.9^2+1.98+0.01

(1)96²+96×8+16
=96²+96×4×2+4²
=(96+4)²
=100²=10000
(2)9.9^2+1.98+0.01
=9.9²+2×9.9×0.1+0.1²
=(9.9+0.1)²
=10²=100