Answer: ab+a-b
ab+ac-a2
CLT( collect like terms)
ab+a2+ac-bc
ab+a-b.
Hope this is correct
Answer: A. sqrt of 500.
Step-by-step explanation: If you simplify the sqrt of 500, you will get 10 sqrt of 5
5n + (-6) = -2
add 6 to -2
5n = -2 + 6
5n = 4
divide both sides by 5
n = 4/5
14 feet long. ............