oblicz korzystająć ze wzorów skróconego mnożenia:
48²=
57²=
dzięki za pomoc!
(50-2)²=2500-200+4=2304
(60-3)²=3600-360+9=3249
48²=(50-2)²=50²-2*50*2+2²=2500-200+4=2304
57²=(60-3)²=60²-2*60*3+3²=3600-360+9=2=3249
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(50-2)²=2500-200+4=2304
(60-3)²=3600-360+9=3249
48²=(50-2)²=50²-2*50*2+2²=2500-200+4=2304
57²=(60-3)²=60²-2*60*3+3²=3600-360+9=2=3249