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Polina2201
@Polina2201
July 2022
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Решите уравнение:
(5-3х)
²-0,5(2х-3)(2х+3)=7х²+2,5
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кляча
Verified answer
25 - 30х + 9х^2 - 2х^2 + 4,5 = 7x^2 + 2,5
9x^2 - 2x^2 - 7x^2 - 30x = -25 - 4,5 + 2,5
- 30x = - 27
x = 27/30
x = 0,9
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Polina2201
^ это что? квадрат?
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Answers & Comments
Verified answer
25 - 30х + 9х^2 - 2х^2 + 4,5 = 7x^2 + 2,59x^2 - 2x^2 - 7x^2 - 30x = -25 - 4,5 + 2,5
- 30x = - 27
x = 27/30
x = 0,9