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If 4x is one factor of 4x^2 -12x what is the other factor?

 

a.  x^2 - 8x

 

b. x - 3

 

c. 4x

 

d x + 3

 Sep 4, 2018

Best Answer 

 #1
avatar+266 
+1

It is really simple 

consider a polynomial 

4x^2-12x

now we can see that we have 4x as a common term hence takin out 4x common

4x^2-12x = 4x(x-3)

so its factors are 4x and x-3

 

smiley                                                                                     Regards ~ Darkside

 Sep 4, 2018
 #1
avatar+266 
+1
Best Answer

It is really simple 

consider a polynomial 

4x^2-12x

now we can see that we have 4x as a common term hence takin out 4x common

4x^2-12x = 4x(x-3)

so its factors are 4x and x-3

 

smiley                                                                                     Regards ~ Darkside

Darkside Sep 4, 2018
 #2
avatar+266 
+1

There i another alternative to this question using the factors theorem let me know if you want that

 Sep 4, 2018

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