Jillian simplified the expression 7 + 3 • (10 - 6)^2 in the following way:
7+3•(10 - 6)^2
7+3 • (4)^2
7+3 • 16
10• 16
160
What was the error
Jillian should have added 7 + 3 in line 2 before doing (10 - 6)^2
There is no error, Jillian simplified correctly.
In line 3, Jillian should have multiplied 3 • 16 instead of adding 7 + 3.
Jillian incorrectly simplified line 2 and it should have been 3 • (4)^2 = 12^2