Xsquared plus three x over x squared minus two x plus one

The given expression can be written as :

In the numerator x can be taken as a common factor to give x(x+3x)

In denominator the first factors are x in both the parenthesis .We then find two numbers which when multiplied will give us 1 and the same numbers on addition should give us -2.The numbers are -1 and -1 .These are written next to x in both the parenthesis .The factors of denominator are (x-1)(x-1) .This can not be simplified further.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this