How do you simplify #2+2(x-7)^2# for x=9?
1 Answer
Oct 15, 2015
The answer is 10.
Explanation:
Step 1: Replace the variable with the value
Step 2: Do 9- 7 because it is in the parentheses, which is a grouping symbol. 2 is left in the parentheses.
Step 3: Do the exponent- which would be equivalent to 2x2
Step 4: You are left with 2+2 (4). Now you do 2x4 because the parentheses tell you to multiply.
Step 5: You have 2+ 8 now so you just add to get to ten!
I hope it helped!
