Answer:
a. Andrea is incorrect
b. By solving for x, we find that x does not equal 8, but it is equal to 7.
Step-by-step explanation:
8+4=2(x-1)
8+4=2x-2
12=2x-2
14=2x
x=7
Decimal form: 5.656854249
Exact form: 4√2
Answer:
here's a website that might help :)
http://www.algebra-class.com/dividing-monomials.html