Matt
6 – 4(3 – 5)2 + 30 ÷ 5
6 – 4(–2)2 + 30 ÷ 5
6 – 4(4) + 30 ÷ 5
6 – 16 + 30 ÷ 5
−10 + 30 ÷ 5
20 ÷ 5
4
Karen
6 – 4(3 – 5)2 + 30 ÷ 5
6 – 4(–2)2 + 30 ÷ 5
6 – 4(−4) + 30 ÷ 5
6 + 16 + 30 ÷ 5
6 + 16 + 6
22 + 6
28

Question

Matt
6 – 4(3 – 5)2 + 30 ÷ 5
6 – 4(–2)2 + 30 ÷ 5
6 – 4(4) + 30 ÷ 5
6 – 16 + 30 ÷ 5
−10 + 30 ÷ 5
20 ÷ 5
4
Karen
6 – 4(3 – 5)2 + 30 ÷ 5
6 – 4(–2)2 + 30 ÷ 5
6 – 4(−4) + 30 ÷ 5
6 + 16 + 30 ÷ 5
6 + 16 + 6
22 + 6
28

chunkymonkey · Answer

whats wrong with them?need help!

anonymous · Answer

for Matt, do you see what is wrong in this step? 
6 – 4(–2)2 + 30 ÷ 5 = 6 – 4(4) + 30 ÷ 5

anonymous · Answer

Ok in matt's I already see a problem in step 3 (-2)2 should be -4

anonymous · Answer

for Karen, do you see how her division is incorrect on this step compared to when matt did his division?
6 + 16 + 30 ÷ 5 =  6 + 16 + 6

chunkymonkey · Answer

ooohhhh ok i see it thank you!