Which step contains an error using the Commutative Property of Addition in verifying
8+x² +17x-x²+4=10+4x2+ 10x - 4x² +2+7x?
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
Answers
Step 1
No mistake was made.
Step 3
Step 2