two *(one - (two *x - five)/(x + one) + (x^ two - five *x + four)/(x + one)^ two)/(x + one) = zero
2 multiply by (1 minus (2 multiply by x minus 5) divide by (x plus 1) plus (x squared minus 5 multiply by x plus 4) divide by (x plus 1) squared ) divide by (x plus 1) equally 0
two multiply by (one minus (two multiply by x minus five) divide by (x plus one) plus (x to the power of two minus five multiply by x plus four) divide by (x plus one) to the power of two) divide by (x plus one) equally zero