Amir evaluated 5x - (x + 3)2 for x = 2, as shown. Describe Amir's mistake and find the correct answer.
5(2) - (2 + 3)2 = 10 + (-5)2
= 10 + 25
= 35

Question

Amir evaluated 5x - (x + 3)2 for x = 2, as shown. Describe Amir's mistake and find the correct answer. 
5(2) - (2 + 3)2	= 10 + (-5)2
 	= 10 + 25
 	= 35

anonymous · Answer

First off, Amir multiplied -5 time two, and said it was 25. The real answer is 0.

anonymous · Answer

The expression -3m - [2m + (5 - m)]  + 7 was simplified as 2 - 4m. Without simplifying, explain how you can show that it has been simplified correctly.

anonymous · Answer

may you help me @Brekitty01

anonymous · Answer

ok
you have to work backwards. So what would you do first?