Question 971505
{{{(((121-x^2)/(x^2-22x+120))((x^2-24x+140)/(x^2-18x+77))}}}---not know why this does not render


{{{(((11+x)(11-x))/((x-10)(x-12)))*(((x-14)(x-10))/((x-11)(x-7)))}}}


{{{((11+x)(11-x)(x-14)(x-10))/((x-10)(x-12)(x-11)(x-7))}}}


{{{((11+x)(11-x)(x-14)cross((x-10)))/(cross((x-10))(x-12)(x-11)(x-7))}}}


{{{((11+x)(11-x)(x-14))/((x-12)(x-11)(x-7))}}}


{{{((11+x)(-1)(x-11)(x-14))/((x-12)(x-11)(x-7))}}}


{{{((11+x)(-1)(cross(x-11))(x-14))/((x-12)(cross(x-11))(x-7))}}}