What is 2(36-:4)+9-8?

1 Answer
Sep 9, 2016

=19

Explanation:

It is most important to count the number of terms first. Each term will simplify to a single answer and these will be added or subtracted in the last step.
Within each term - brackets must be done first.
Then do the stronger operations of powers and roots.
Then do multiplication and division.

2(color(red)(36div4)) color(blue)(+9)color(lime)(-8) has 3 terms.

=color(red)(2xx9) color(blue)(+9)color(lime)(-8)

=color(red)(18) color(blue)(+9)color(lime)(-8)

=19