(-3)^2 = 9
-3^2 = -9
Hope this helps!
C! Like terms refer to the variables that are the same, rather than the coefficients (the numbers).
Answer:
40 degrees
Step-by-step explanation:
x and 40 (degrees) are "vertical angles" and are thus equal. So x = 40 degrees.
Second one if you distribute the first expression you get the second equation so the expressions are equivalent
