Let's factor the following polynomial to find the roots:
x2-13x + q = 0
Factoring we have:
(x-12.5) * (x + a)
Where,
-12.5 + a = -13
a = -13 + 12.5
a = -0.5
We now look for the coefficient q:
q = -12.5 * a
q = -12.5 * (- 0.5)
q = 6.25
The polynomial will then be:
x2-13x + 6.25 = 0
Its roots are:
x1 = 12.5
x2 = 0.5
Answer:
The other root and the value of the coefficient are:
0.5 and 6.25 (Respectively)
X = -7
That’s your answer :)
Answer:
a. d(x) = x
b. yes
Step-by-step explanation:
a. since c(x) = 
+ 1
c(d(x)) = (d(x))^2 + 1 (replace x with d(x))
that means d(x) has to be x for c(d(x)) to equal + 1
b. for example if you use 2 as x, c(d(x)) will equal 5 since d(x) = 2 and 
+ 1 = 5
d(c(x)) will also equal 5 because c(x) = + 1 = 5 and d(c(x)) = c(x) = 5
