Answer:
0
Step-by-step explanation:
they cancel out so then it becomes zero
The answer is the second one
Answer:
The area is:

Step-by-step explanation:
Area of this figure is simply the product of the base and the height, as it just happens to be a slanted or inclined rectangle.
Therefore:

Answer:
Step-by-step explanation:
It is given that, 
We need to find the value of 
As 
Solving LHS

Now comparing the coefficients of 
In LHS the coefficient of
is 25
In RHS the coefficient of
is 
It implies that, 
So, the value of
is 25.
Answer:-4ab-7a-6
Step-by-step explanation:
(-6ab-7a+2) - (-2ab+8)
-6ab -7a + 2 + 2ab-8 (removed parentheses & fixed the negative at the end)
-4ab-7a-6 (combined like terms)