x^2-6x-1 = 0 x^2-x = x+2 Найдите значение x, при котором равенство будет верным...

June 2022 1 10 Report

x^2-6x-1 = 0
x^2-x = x+2
Найдите значение x, при котором равенство будет верным и округлите до десятых :)

Answers & Comments

marinangl 1. $x^{2}-6x-1=0\\
D=36+4=40\\\\
x_{1}=3+ \sqrt{10}=6,1;\\ x_{2}=3- \sqrt{10} =-0,1$
____
2. $x^{2}-x=x+2\\
x^{2}-2x-2=0\\
D=4+8=12\\\\
x_{1}=1+ \sqrt{3}=2,7;\\
x_{2}=1- \sqrt{3} =-0,7$

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