Answer: your answers are correct. I inserted an image of the answers.
Answer:
step 1: move the -4 to the right: x^2 -2x = 4
step 2: add 1 to each side: x^2 -2x + 1 = 4 + 1
step 3: factor the left side and simplify the right side: (x-1)^2 = 5
step 4: take the square root of each side: x - 1 = sqr root of 5
step 5: move the 1 to the other side:
and 
Yes its correct. 7.4-.2=7.2
Answer:
4 x 3 x 2 x 3
Step-by-step explanation:
4 x 3 = 12
12 x 2 = 24
24 x 3 = 36
It doesn't matter what order it will come out to be 36 in every situation, since PEMDAS isn't needed.