Решите уравнения 0=(3x-5)^2-2(2x-5)-8. Created by Angel1204. algebra-ru

Решите уравнения 0=(3x-5)^2-2(2x-5)-8...

July 2022 1 7 Report

Решите уравнения
0=(3x-5)^2-2(2x-5)-8

Answers & Comments

ХелпаниБро $(3x-5)^2-2(2x-5)-8=0$
$(3x-5)(3x+5)-2(2x-5)-8=0$
$9x^2+15x-15x-25-4x^2+10-8=0$
$5x^2-23=0$
$5 x^{2} =23$
$x^2= \frac{23}{5}$
$x_{1} = \sqrt{ \frac{23}{5}}$
$x_{2=}- \sqrt{ \frac{23}{5} }$

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