Multiply vertically:
(x-5)(6x^2-8x-6)

Question

Multiply vertically: 
(x-5)(6x^2-8x-6)

amistre64 · Answer

same concept as multiply numbers vertically :)

line them up and go at it ...

anonymous · Answer

6x^2-8x-6
                       x - 5
               ----------
            -30x^2  + 40x  + 30
  6x^2   - 8x^2   -  6x
 -----------------------
  6x^2  - 38x^2  +34x +   30

anonymous · Answer

u follow that ok?

amistre64 · Answer

almost formated right :)

amistre64 · Answer

6x^3 but ill assume its a typo

anonymous · Answer

yes  should be  6x^3

amistre64 · Answer

with polys it might be easier to stager them to the left instead:

 6x^2 -8x -6
 x - 5
-----------
6x^3 -8x^2 - 6x
       -30x^2 +40x +30
--------------------
6x^3 -38x^2 +34x + 30

whatever is easiest for you

anonymous · Answer

correct answer is 6x^3  - 38x^2  +34x +   30