If c(x) - x-3 and d(x) = x + 3, what is the domain of (cd)(x)?

All Real numbers

Step-by-step explanation:

c(x)= x-3

d(x) = x+3

dc(x)= (x-3)(x+3)

is defined for all values of x , And hence the domain of cd(x) will be set of all Real Numbers

13. jbhgfsfyfvhvbjko

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0