Question

Read the following proof of the polynomial identity a3+b3=(a+b)3−3ab(a+b).

Step 1: a3+b3=a3+3a2b+3ab2+b3−3ab(a+b)
Step 2: a3+b3=a3+3a2b+3ab2+b3−3a2b−3ab2
Step 3: a3+b3=a3+3a2b−3a2b+3ab2−3ab2+b3
Step 4: a3+b3=a3+b3

Match each step with the correct reason.

commutative property of addition
combine like terms
binomial theorem
associative property of multiplication
commutative property of multiplication
associative property of addition
distributive property

Answer 1

Answer:

binomial theorem

distributive property

associative property of multiplication

commutative property of multiplication

associative property of addition

commutative property of addition

combine like terms

Answer 2

Answer:

hello no

Step-by-step explanation:

nno ni