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LimMina
@LimMina
July 2022
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Решите при помощи формул сокращенного умножения:
(2х+5)(3х-7)+(2х-1)(2х+1)=(5х+3)(2х-5)
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Aliya1267
6x²-14x+15x-35+(2x)²-1²=10x²-25x+6x-15
6x²-14x+15x+4x²-10x²+25x-6x=-15+35+1
20x=21
x=21/20
x=1,05
2 votes
Thanks 1
LimMina
Я давно решила, но все равно спасибо
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Answers & Comments
6x²-14x+15x+4x²-10x²+25x-6x=-15+35+1
20x=21
x=21/20
x=1,05