Answer:
(3x - y)(3x + y)
Step-by-step explanation:
Both 9x^2 and y^2 are perfects squares.
The rule for factoring perfect squares is a^2 - b^2 = (a - b)(a + b).
Here, factoring (3x)^2 - y^2 results in (3x - y)(3x + y).
Let us fill the blank squares in the 10-frame by the yellow circles below to make 10s.
1. Fill the 3 blank squares with 3 yellow circles below to make a 10 and form a new fact 10 + 2. Now, we can easily add 10 and 2 to get 12.
2. Fill the 1 blank square with 1 yellow circle below to make a 10 and form a new fact 10 + 4. Now, we can easily add 10 and 4 to get 14.
Please refer attached figures for better understanding.
Both expressions are related because 12 divided by 4 equals to 3, and 1/4 of 12 equals to 3 too.
Answer:
Order from Least to Greatest ---> 5/9 , 0.58 , 7/12 , 2/3 , 0.67
Step-by-step explanation:
5/9 < 0.58 < 7/12 < 2/3 < 0.67