Вычислить: а) 101^2 - 202 * 81 + 81^2 б) 53^2 - 32^2 ___________ 62^ 2 - 44^2 плииииз. Created by davidsoldatov2008. algebra-ru

Вычислить: а) 101^2 - 202 * 81 + 81^2 б) 53^2 - 32^2 ___________ 62^ 2

davidsoldatov2008 @davidsoldatov2008

July 2022 1 15 Report

Вычислить:
а) 101^2 - 202 * 81 + 81^2
б) 53^2 - 32^2
___________
62^ 2 - 44^2
плииииз

Answers & Comments

Universalka

Verified answer

$\displaystyle\bf\\1)\\\\101^{2} -202\cdot81+81^{2} =101^{2} -2\cdot 101\cdot81+81^{2} =\\\\=(101-81)^{2} =20^{2} =400\\\\\\2)\\\\53^{2} -32^{2} =(53-32)(53+32)=21\cdot85=1785\\\\\\3)\\\\62^{2} -44^{2} =(62-44)(62+44)=18\cdot106=1908$

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Answers & Comments

Verified answer

treugolniki avs i a1v1s1 podobny av 12 sm vs 18 sm sa 20 sm naimenshaf41d18eeb892f05b538dda40f55652f5 95330

ch bolshe skorosti avtobusa vyehali odnovremenno navstrechu drug drugu iz dvuh go930fb583fd3a476fb96627c08fd0b08a 70397

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sostavte 3 pravila oficialnyh mezhlichnostnye otnosheniya uchenika s uchitelem pzhzhzh

chem otlichaetsya literaturnyj robinzon ot ego realnogo prototipa pzhzhzhzhzh

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