X=7.1cm
The solution is in the attached file
Answer:
A is the correct answer
Step-by-step explanation:
Answer:
13x + x^2 - 9
Step-by-step explanation:
You have to distribute then eliminate redundant parentheses then subtract the numbers then combine like terms then multiply by one then combine like terms and then the answer is 1 13x + x^2 - 9.