lets solve the quadratic equation: 7x^2 + 2x = 0 (x)(7x + 2) = 0 therefore, for this equation to hold we need, either one of these conditions: x = 0 or 7x + 2 = 0 from where: 7x = -2 x = -2/7 then, we have two solutions for the equation as expected being quadratic.
