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LoKs75GaMeR
@LoKs75GaMeR
July 2022
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Решите уравнение:
1. (x+6)(x-1)-(x+3)(x-4)=5x
2.(x+3)(x-2)-(x+4)(x-1)=3x
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Бумш
В обеих уравнениях раскрываем скобки и приводим подобные:
1 votes
Thanks 2
AnonimusPro
Verified answer
1. (x+6)(x-1)-(x+3)(x-4)=5x
x^2+6x-x-6-x^2-3x+4x+12=5x
x^2+6x-x-x^2-3x+4x-5x=6-12
x=-6
2. (x+3)(x-2)-(x+4)(x-1)=3x
x^2+3x-2x-6-x^2-4x+x+4=3x
-2x-2=3x
-2x-3x=2
-5x=2
x=-2/5
2 votes
Thanks 2
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Answers & Comments
Verified answer
1. (x+6)(x-1)-(x+3)(x-4)=5xx^2+6x-x-6-x^2-3x+4x+12=5x
x^2+6x-x-x^2-3x+4x-5x=6-12
x=-6
2. (x+3)(x-2)-(x+4)(x-1)=3x
x^2+3x-2x-6-x^2-4x+x+4=3x
-2x-2=3x
-2x-3x=2
-5x=2
x=-2/5