Simplify the following rational expression
5k? - 50k +45
k2 - 18k + 81
which values of k make the expression undefined?
choose all answers that apply:

The value of k for the expression to be undefined is 9 .

Step-by-step explanation:

Given as :

The rational expression is written in the form

Now, according to question

The expression to be undefined , denominator should be 0

As, is infinite ( ∞ ) term and it is undefined  , so for expression to be undefined , the denominator should be 0

∴ k² - 18 k + 81 = 0

Or, k² - 9 k - 9 k + 81 = 0

Or, k ( k - 9 ) - 9 ( k - 9) = 0

Or, ( k - 9 ) ( k - 9 ) = 0

Or,  ( k - 9 ) = 0  ,   ( k - 9 ) = 0

∴  k = 9

So, The value of k = 9

Hence The value of k for the expression to be undefined is 9 . Answer

saving = more money

step-by-step explanation:

if you have 100 bucks, and you want to buy a candy bar, even if you have one at home, if you choose not to buy it, you save.

~courtney

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1