Question

considere a funçao polinomial de primeiro grau definida de r em r a seguir f(x)=-3x/2 -2/5 determine a raiz da funçao f

Answer 1

$f(x) = -\frac{3x}{2} - \frac{2}{5} \\-\frac{3x}{2} - \frac{2}{5} = 0\\\frac{3x}{2} = -\frac{2}{5} \\\\3x = -\frac{4}{5}\\\\x = - \frac{\frac{4}{5} }{\frac{3}{1} }\\\\x = - \frac{4}{5} * \frac{1}{3}\\\\x = - \frac{4}{15}$