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Anyko
@Anyko
August 2021
2
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При каком значении x равны значения выражений
(3x+5)(4x-1) и (6x-3)(2x+7)
Срочного решите плиз
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labanka
Приравниваем и раскрываем скобки
(3x+5)(4x-1) = (6x-3)(2x+7)
12x^2-3x+20x-5=12x^2+42x-6x-21
17x-5=36x-21
17x-36x=-21+5
-19x=-16
x=16/19
5 votes
Thanks 14
Grator
(3x+5)(4x-1)=(6x-3)(2x+7)
12x^2-3x+20x-5=12x^2+42x-6x-21
12x^2-3x+20x-12x^2-42x+6x=5-21
-19x=-16
x=16/19
3 votes
Thanks 7
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Answers & Comments
(3x+5)(4x-1) = (6x-3)(2x+7)
12x^2-3x+20x-5=12x^2+42x-6x-21
17x-5=36x-21
17x-36x=-21+5
-19x=-16
x=16/19
12x^2-3x+20x-5=12x^2+42x-6x-21
12x^2-3x+20x-12x^2-42x+6x=5-21
-19x=-16
x=16/19