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elmanlezgin
@elmanlezgin
July 2022
2
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Упростить выражение.
(0.2a+5)^2-(0.2a-5)^2
^-перед квадратом поставил)
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Banabanana
Verified answer
(0.2a+5)²-(0.2a-5)²=(0.2a+5-(0.2a-5))(0.2a+5+0.2a-5)=(0.2a+5-0.2a+5)*0.4a=
=10*0.4a=4a
1 votes
Thanks 1
elmanlezgin
Спасибо
Banabanana
пожалуйста
Kixcertborn2
Verified answer
Задание решено...............
2 votes
Thanks 2
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Answers & Comments
Verified answer
(0.2a+5)²-(0.2a-5)²=(0.2a+5-(0.2a-5))(0.2a+5+0.2a-5)=(0.2a+5-0.2a+5)*0.4a==10*0.4a=4a
Verified answer
Задание решено...............