22. The product of two negative integers is the largest 2-digit number. If one of the numbers is (-11), find the other integer.

x = -9

Step-by-step explanation:

Let unknown number = x

Largest 2-digit number  = 99

x * (-11) = 99

         x = 99 ÷ (-11)

       x = -9

-9

Step-by-step explanation:

1. The largest 2-digit number is 99

2. So, our problem should look like this: (-11) x ?= 99

3. Divide 99 by -11, and that'll equal -9

hope this helps! <3

f(x)=4

step-by-step explanation:

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