Question

qual a raiz quadrada de 4 x - 8x + 2 = 0

Answer 1

$\sqrt{4x-8x+2}=0\\\left(\sqrt{4x-8x+2}\right)^2=0^2\\4x-8x+2=0\\-8x+2=0\\8x=2\\x=2\div 8\\\boxed{\bold{x=\frac{1}{4}}}$