Multiple choice The roots of quadratic equations $ax^2+bx+c=0$ and $lx^2+mx+n=0$ are? Reciprocal if $\dfrac{a}{l}=\dfrac{b}{m}=\dfrac{c}{n}$ Equal if $\dfrac{a}{n}=\dfrac{b}{m}=\dfrac{c}{l}$ Reciprocal if $\dfrac{a}{n}=\dfrac{b}{m}=\dfrac{c}{l}$ None of these Reveal answer Fill a bubble to check yourself A Correct answer