Hello there!
Use the formula

in order to created a new term. Solve for x by using this term to complete the square.

Hope this helps! :)
~Zain
The axis of symmetry is x=2.
PEMDAS states that the value in the parenthesis should be evaluated first:
4(5*6)
4(30)
After just multiply the value in the parenthesis by the number outside of the parenthesis:
120
It’s option 4, it’s very different from the others and i’ve never seen it in any polynomials
Answer:
18.9
Step-by-step explanation:
The formula after being set up is 20 cos 19. After solving, that is the answer.