Question 883522
Matt made a mistake:

6 – 4(3 – 5)2 + 30 ÷ 5
6 – 4(–2)2 + 30 ÷ 5
6 – 4(4) + 30 ÷ 5 ---------------Right here.  {{{(-2)*2<>4}}}.
6 – 16 + 30 ÷ 5
&#8722;10 + 30 ÷ 5
20 ÷ 5
4 


Karen's work and result are correct.