When to add exponents<span>, when to multiply </span>exponents<span>. Same ... Two factors of </span>x<span> -- </span>x2<span> -- </span>times<span> five factors of </span>x<span> -- </span>x5<span> -- </span>times<span> one factor of </span>x, .... (2x3y4)5<span> = </span>25x15y<span>20</span>
