3 years ago

Identify the property that justifies each step. I need answers to both questions

1 answer:

5 0

Answer:

Step-by-step explanation:

from line 1 to line 2 we see that (2 + 9x ) is the same as (9x +2 ) because

commutative propriety of addition

(we commute numbers around an addition sign)

from line 1 to line 2 we see that (x+1)*(9x +2) is the same as (9x+2)*(x+1) because commutative propriety of multiplication

(we commute parentheses around a multiplication sign)

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yarga [219]

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Volgvan

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