Consider the function ()=2−11+282−49a.Factor the numerator and the denominator. b.What is the domain of()? Express your answer in interval notation.

The other person provided a great answer but i do it a little different....                            

All i did was use the formula A^2=C^2-B^2. I Plugged in the numbers to the formula and got A^2=10^2-6^2. Next, I found what 10^2 equals by doing 10*10 which equals 100. Then, i found out what 6^2 equals by doing 6*6 which equals 36. Next, what i did was subtracted 100 from 36 and got 64. Finally i found the square root of the number 64 which equal 8 since 8x8=64.