Sarah cut off 1/8 of a 48-inch piece of ribbon. Jane cut off 1/9 of a 36-inch piece of ribbon. Whose piece is longer? How much l
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Answer:
900 - 1= (31)(29)
Step-by-step explanation:
We need to factor 900 -1
We write each number in square form
900 can be written as 30^2
1 can be written as 1^2
Now we apply difference of square formula
a^2 - b^2 = (a+b)(a-b)
So 900 - 1= (31)(29)