Answer:
Yes, 2x=4 is 2 simply by dividing, and 4x+5=13 is 2 as well, because 5-13 is 8 and 8 divided by 4 is 2
Answer:
Final answer is 
and .
Step-by-step explanation:
Given equation is 
.
Now we need to solve that by factoring.
,
,
,
,
Hence final answer is and .
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).
Answer:
You're less likely to make mistakes reading or writing very big and very small numbers if you use scientific notation. It also makes it much easier to tell at a glance which numbers are bigger or smaller without counting long strings of zeros.
Domain is the independent variables or the x.
so i say D {-1,3,5} based on the arrows
