Question

Me ajudem Rapidão ❤️

2x²+10x+5=2x+3

(Quero com cálculos por gentileza)​

Answer 1

Olá, tudo bem? Vamos utilizar a fórmula quadrática(Bhaskara) a fim de responder essa equação do segundo grau; assim:

$2x^2+10x+5=2x+3\to\\\\2x^2+8x+2=0\,\,(\div\,2)\to\\\\x^2+4x+2=0\to\\\\\text{Bhaskara}\to\\\\x=\dfrac{-b\pm\sqrt{b^2-4\times a\times c}}{2\times a}\to\\\\\\x=\dfrac{-4\pm\sqrt{4^2-4\times 1\times 2}}{2\times 1}\to\\\\\\x=\dfrac{-4\pm\sqrt{8}}{2}\to\\\\\\x=\dfrac{-4\pm2\sqrt{2}}{2}\to\\\\\\\boxed{x_{1}=-2-\sqrt{2}}\checkmark\\\\\text{ou}\\\\\boxed{x_{2}=-2+\sqrt{2}}\checkmark$

É isso!! :)