If it doesn't, then you'll know there's something wrong. The first thing to do is find the highest common factor (H.C.F) of \(10\) and \(4x\). This will tell us the term that will go outside the ...

This is what goes outside the bracket: \(\text{5(? + ?)}\) To identify the terms that need to go inside the bracket, we must divide each term by the highest common factor.