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x^-6x-27

Guest Jul 26, 2018

Best Answer 

 #1
avatar+92917 
+2

factorize   x^-6x-27

 

I expect you mean  \(x^2-6x-27\)

 

You have to look for 2 numbers that multiply to -27 and add to -6

 

Since they mult to a minus number, one must be positive and one must be negative.

Since they add to a minus number the bigger one is the negative one.

 

-9 and 3 are the numbers

 

\(x^2-6x-27=(x-9)(x+3)\)

Melody  Jul 26, 2018
 #1
avatar+92917 
+2
Best Answer

factorize   x^-6x-27

 

I expect you mean  \(x^2-6x-27\)

 

You have to look for 2 numbers that multiply to -27 and add to -6

 

Since they mult to a minus number, one must be positive and one must be negative.

Since they add to a minus number the bigger one is the negative one.

 

-9 and 3 are the numbers

 

\(x^2-6x-27=(x-9)(x+3)\)

Melody  Jul 26, 2018

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