Parenthesis in Algebra?

Question

What do you do when there is a number in parenthesis alone?

For example:

4+[5x4+9(2)]

Answer 1

multiply it to the number right outside the parenthesis

aka distribute the 9 into the parenthesis which in this case is just to the 2..a lot of times there will be more than one term inside the paren.

Answer 2

means multiply

it would be 4+(5x^4+18)

make it a good day

Answer 3

exclude it or if theres another number in it add subtract or multiply, im taking this course since im only 13, they answer is

4+[5x4+18]

5x4=22 or sumthing