Question

What is `25- ( 2+ ( 4- 2)^{2} ) + 10`?

Answer 1

`29`

Explanation:

Always count the number of terms first. EAch term will give a final answer and these are added or subtracted (left to right) in the final step.

The expression has 3 terms, but there are 2 separate terms inside the bracket.

`25-(2+color(red)((4-2))^2)+10`

=`25 - (2+color(blue)((2)^2))+10`

=`25 -color(lime)((2+4))+10`

=`color(magenta)(25)-6color(magenta)(+10)" "larr` 3 terms: calculate from left to right

OR

=`color(magenta)(25+10)-6" "larr` re-arrange with + at the front

=`29`