Longer piece: 3x + 3
Shorter piece: x
(x) + (3x + 3) = 7
4x + 3 = 7
4x = 4
x = 1
Longer piece: 3x + 3 = 3(1) + 3 = 6
Answer: 1 ft and 6 ft
By the binomial theorem,

I assume you meant to say "independent", not "indecent", meaning we're looking for the constant term in the expansion. This happens for k such that
12 - 3k = 0 ===> 3k = 12 ===> k = 4
which corresponds to the constant coefficient

well, we know is a line, and to get the equation of any straight line all we need is two points, hmmm let's use from the table hmm say (2 , -50) and hmmm (4 , -88)


He will get no solutions and this is for the following reasons:
1. A and B have no solutions, so they must be parallel.
2. B and C have infinite solutions, so they must represent the same line.