Answer:
8 ft
Step-by-step explanation:
Add back those 5 square feet and you find the area of the square to be 64 square feet. Its side length is the square root of that: 8 ft.
Answer:
yes
Step-by-step explanation:
These are like terms because they have the same variables and powers. The coefficients do not need to match for it to be considered a like term.
Answer:
5
Step-by-step explanation:
-7 x 4 = -28
-7 x -6 = 42
-28 + 42 = 14
14 - 9 = 5