Question

3X(2-4x) +10x² = 6(x-3) hallar la x plis​

Answer 1

Tema: Ecuación de primer grado

$\textbf{Resolvemos:}\\\\3x(2-4x)+10x^{2}=6(x-3)\\\\6x-12x^{2}+10x^{2}=6x-18\\\\-12x^{2}+10x^{2}+6x-6x=-18\\\\-2x^{2}=-18\\\\x^{2}=\dfrac{-18}{-2}\\\\x^{2}=9\\\\x=\sqrt{9}\\\\\boxed{x_{1}=3\ \ ; \ x_{2}=-3}\quad\Leftarrow Valor\ de\ la\ variable$

El valor de de la variable es 3 o -3

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