Which step contains an error using the Commutative Property of Addition in verifying 8+x2+17x−x2+4=10+4x2+10x−4x2+2+7x?

Question

Step 1: 8+4+x2−x2+17x=10+2+10x−4x2+7x +4x2

Step 2: 8+4+17x+x2−x2=10+2+4x2−4x2+10x+7x

Step 3: 12+17x+x2=12−x2+17x

(1 point)
Responses

Step 1
Step 1

Step 2
Step 2

Step 3
Step 3

No mistake was made.
No mistake was made.

Answer 1

Step 3 contains an error. The equation should be: 12+17x+x^2=12-4x^2+17x.