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