Реши уравнение x^2 + 2x − 3 = 0.. Created by PLEASE1253. algebra-ru

Реши уравнение x^2 + 2x − 3 = 0...

July 2022 1 8 Report

Реши уравнение x^2 + 2x − 3 = 0.

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Golovolomka1111
${x}^{2} + 2x - 3 = 0 \\ {x}^{2} + 3x - x - 3 = 0 \\ x(x + 3) - 1(x + 3) = 0\\ (x + 3)(x - 1) = 0 \\ x + 3 = 0 \\ x - 1 = 0 \\ x1 = - 3 \\ x2 = 1$

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