Question 1154232
{{{((-x+1)/(x^2+3x-4))*((8x^2-4x)/((x-3)(x+7)))}}}


{{{((-x+1)/(x^2-x+4x-4))*((4x(2x-1))/((x-3)(x+7)))}}}


{{{(-(x-1)/((x^2-x)+(4x-4)))*((4x(2x-1))/((x-3)(x+7)))}}}


{{{(-(x-1)/(x(x-1)+4(x-1)))*((4x(2x-1))/((x-3)(x+7)))}}}


{{{(-cross((x-1))/(cross((x-1))(x+4)))*((4x(2x-1))/((x-3)(x+7)))}}}....do not forget that denominators cannot be equal to zero, so we need to count restriction {{{x<>1}}}


{{{(-1/(x+4))*((4x(2x-1))/((x-3)(x+7)))}}}=> since denominators cannot be equal to zero, {{{x<>1}}}, {{{x<>-4}}},{{{x<>3}}},{{{x<>-7}}} (restrictions


{{{(-4x(2x-1))/((x+4)(x-3)(x+7)))}}}

or

{{{(-8x^2+4x)/(x^3+8x^2-5x-84)}}}


there is no option in the multiple choice