Perform the following operations and prove closure. show your work.
1. x/x+3 +x+2/x+5
2. x+4/x^2+5x+6• x+3/x^2−16
3. 2/x2−9 − 3x/x^2−5x+6
4. x+4/x^2−5x+6 ÷ x^2−16/x+3
5. compare and contrast division of integers to division of rational expressions.

i dont have an answer

step-by-step explanation:

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

94

step-by-step explanation:

average the numbers and use a variable to figure out the minimum to get a 90.

(79+94+91+92+x)/5=90

x = 94

22

step-by-step explanation:

22