2 (x-1). -(x+3)(x-3)

Question

2
(x-1). -(x+3)(x-3)

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Answer 1

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решении во вложении

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Answer 2

Х2 - 2х + 1 - (х2 - 9) = 0
х2 - 2х + 1 - х2 + 9 = 0
-2х + 10 = 0
-2х = - 10
х = 5