Question

resolva a equação do 2 grau incompleta [U=R] * 3x^2 - 300 x= - 600x

Answer 1

$3 {x}^{2} = - 600x + 300x$
$3 {x}^{2} = - 300x$
${x}^{2} = - 300x \div 3$
${x}^{2} = - 100x$
${x}^{2} \div x = - 100$
$x = - 100$