What is 3(u+1)+4u+1 as a simplified expression?

3(u+1)+4u+1

Multiply the bracket by 3

(3)(u)=3u, (3)(1)=3

3u+3+4u+1

3u+4u+3+1 ( combine like terms)

=7u+4

7u+4

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square