Question

(х-11): х2-22х+121/х+11 при х=7

Answer 1

$(x-11): \frac{ x^{2} -22x+121}{x+11}= (x-11)* \frac{x+11}{(x-11)(x-11)}= \frac{x+11}{x-11}$

при  х=7
(7+11)/(7-11)= - 16/4= - 4