Question

please help
santiago simplified the expression shown below. He got an answer of -573 when he should have gotten an answer of 197. Where did Santiago go wrong?

Answer 1

What is the expression?

Answer 2

expression....?

Answer 3

where is "the expression shown below"?

Answer 4

Haha, sometimes expression is ambiguous :D It was hidden to challenge us ^_^ :))

Answer 5

Santiago didn't show his work so it is impossible to find his mistake...

Answer 6

@ehuman you made me laugh :D

Answer 7

@coolpowerpuff if you want help, you'll need to attach the full question

Answer 8

Santiago's mistake was that he did not show his work. ;)