(a+b)2, a2-b2, a2+2b+a, a2+2ab+b2, (x-5)(x+5), x2-25, x2-10x+25, x2+5, (x+2)(x+8), x2+4x+4, x+2x-8, x2+10x+16, 98✕102=, (100-2), (100-2)(100+2), 10000+4, (101)2=, (100+1)2=10000+200+1=10201, 1002-1=10000-1=9999, (100-1)(100+1), 97✕105=, (97+105)2=9409+20370+11025, (100-3)(100+3)=10000-9, (100-3)(100+5)=10000+200-15, (⎷5-⎷3)(⎷5+⎷3)=, ⎷5+3, 5-3=2, ⎷5-3

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