How do you evaluate 4(8-(4*2))+1?

1 Answer
May 13, 2017

4(8-(4xx2))+1 = 1

Explanation:

In a calculation with different operations, they have to be done in a specific order, given by the acronym BODMAS, PEDMAS, or similar.

There are 2 terms. Each term must be simplified to a single answer which are added in the last step.

color(green)(4(8-(4xx2)))color(blue)(+1)

Within each term, brackets must be done first, then the powers and roots, and then multiplication and division.

color(green)(4(8-(4xx2)))color(blue)(+1)

There are 2 sets of brackets - start with the inner one.

4(8-color(red)((4xx2))color(blue)(+1)
color(white)(.............)darr
=4(color(red)(8-8))color(blue)(+1)
color(white)(......l..)darr
=color(red)(4xx0)color(blue)(+1)
color(white)(.......)darr
=" "color(red)(0)color(blue)(+1)

=1

Notice that there is nothing to be done with the last term (+1).
It is just carried down with each line until the last step where it is added.