how do i do this problem

find the missing factor 7m2 times (?) = 35m8 -28m5 -42m2

Printable View

- Mar 16th 2006, 09:46 PMjim1174find the missing factor
how do i do this problem

find the missing factor 7m2 times (?) = 35m8 -28m5 -42m2 - Mar 17th 2006, 08:40 AMThePerfectHackerQuote:

Originally Posted by**jim1174**

$\displaystyle 7m^2 (?)=35m^8-28m^5-42m^2$

On the right side you get $\displaystyle 35m^8$ thus, which number when multiplied by $\displaystyle 7m^2$ gives $\displaystyle 35m^8$? The answer is $\displaystyle 5m^6$. Now on the right side you also have $\displaystyle -28m^5$ now which number when multiplied by $\displaystyle 7m^2$ gives $\displaystyle -28m^5$? The answer is $\displaystyle -4m^3$. Now on the right side you also have $\displaystyle -42m^2$ now which number multiplied by $\displaystyle 7m^2$ gives $\displaystyle -42m^2$? The answer is $\displaystyle -6$ Thus, you have,

$\displaystyle 7m^2(5m^6-4m^3-6)=35m^8-28m^5-42m^2$

Thus, the answer is,

$\displaystyle 5m^6-4m^3-42$ - Mar 17th 2006, 09:57 PMRich B.
I saw this, as well as the two preceding threads re. factoring, verbatim, on another site. Interestingly, that membership provided guidance all but equal to the thorough work presented here by PHckr. ...just a thought...

Rich B