# Addition and Subtraction of Algebraic Expressions [Pending...]

**rpstaines** 13 Apr 2021, 22:46

### My question

simplify −3[−5(m − 2n) + 4n] + `sqrt(4n)`

### Relevant page

1. Addition and Subtraction of Algebraic Expressions

### What I've done so far

−3[−5(m − 2n) + 4n] + `sqrt(4n)`

=-3[-5m+10n+4n]+`sqrt(4n)`

=-15m-30n-12n +`sqrt(4n)`