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a fost răspuns

rezolvati in R ecuatiile;
a) (x-6)²-x(x+8)=2
b) 9x(x+6)-(3x+1)²=1

Răspuns :

[tex]a)(x-6)^2-x(x+8)=2\\ x^2-12x+36-x^2-8x=2\\ -20x=-34\\ x=\frac{34}{20}=\frac{17}{10}\\ b)9x(x+6)-(3x+1)^2=1\\ 9x^2+54x-9x^2-6x-1=1\\ 48x=2\\ x=\frac{2}{48}=\frac{1}{24}[/tex]

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