stosując wzory skróconego mnozenia oblicz:
599^2
402^2
398^2
(600 -1)^2 = 600^2 - 2*600*1 + 1^2 =360 000 - 1200 +1 = 358 801
(400 +2)^2 = 400^2 + 2*400*2 + 2^2 = 160 000 + 1600 + 4 = 161 604
(400 - 2)^2 = 400^2 - 2*400*2 + 2^2 = 160 000 - 1600 +4 = 158404
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(600 -1)^2 = 600^2 - 2*600*1 + 1^2 =360 000 - 1200 +1 = 358 801
(400 +2)^2 = 400^2 + 2*400*2 + 2^2 = 160 000 + 1600 + 4 = 161 604
(400 - 2)^2 = 400^2 - 2*400*2 + 2^2 = 160 000 - 1600 +4 = 158404