Let w = width
then
5w-3 = length
w(5w-3) = 14
5w^2-3w = 14
5w^2-3w-14=0
(5w+7)(w-2) = 0
w = {-7/5, 2}
throw out the negative solution leaving
w = 2 centimeters
length:
5w-3 =5(2)-3 =10-3 = 7 centimeters
1/7 + 2/7 ??
Would this be too easy of an answer??
The absolute value of -12.5 is?
|-12.5| = 12.5
The absolute value of a negative number is the number that is exactly opposite on the number line, being a positive number. A positive number's absolute value is always the same thing, positive. Examples:-
|10| = 10
|-10| = 10
|-8.5| = 8.5
|8.5| = 8.5
|-12.5| = 12.5
Answer:
A centimeter is 100 times the length of a meter.
A kilometer is 1,000 times the length of a meter.
As your question is stated, there is no answer!
I'm going to assume the polynomial you meant is:

To create a perfect square trinomial, take half the coefficient of x and then square it.

In all problems like this, you want to square half the coefficient of x -- always half.