Answer:

<h3>which can't be possible,,, so this statement is wrong at all </h3>
Answer:
BC would be 8.
Step-by-step explanation:
40 x 0.2 = 8
(Try graphing on a number line)
It expands to
4x - x^2 - 2
Yes it is quadratic.
It has no solution
18m+7=18m+7
Which means they are the same equation !!