Xcubed plus 2x cubed need this asap

Multiplying an even number of negative numbers gives an answer that is choose from:

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11