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bulychevavika1
@bulychevavika1
July 2022
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Помогите с тождеством (7 класс)
(a-3c)(4c+2a)+3c(a+3c)=(2a-c)(3c+5a)-8a(в квадрате)
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(a-3c)(4c+2a)+3c(a+3c)=(2a-c)(3c+5a)-8a
²
4ac+2a²-12c²-6ac+3ac+9c²=6ac+10a²-3c²-5ac-8a²
2a²-3c²+ac=2a²-3c²+ac
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Answers & Comments
4ac+2a²-12c²-6ac+3ac+9c²=6ac+10a²-3c²-5ac-8a²
2a²-3c²+ac=2a²-3c²+ac
ВЕРНО