+0  
 
+2
51
1
avatar+80 

show steps of how to sovle for two terms

x^3+9769

gadzooks1753  Nov 28, 2017

Best Answer 

 #1
avatar+1493 
+1

In this case, we are utilizing the rule of a sum of cubes. The rule is the following:

 

\(a^3+b^3=(a+b)(a^2-ab+b^2)\)

 

To remember the signs, you can remember this acronym. "soap." The acronym dictates the signage sequentially. 

 

Same sign

Opposite sign

Always

Positive

 

\(a=x\\ b=\sqrt[3]{9769}\)

 

9769 is not a perfect cube, so this is the best we can do.

 

\((x+\sqrt[3]{9769})(x^2-x\sqrt[3]{9769}+\sqrt[3]{9769}^2)\)

TheXSquaredFactor  Nov 28, 2017
Sort: 

1+0 Answers

 #1
avatar+1493 
+1
Best Answer

In this case, we are utilizing the rule of a sum of cubes. The rule is the following:

 

\(a^3+b^3=(a+b)(a^2-ab+b^2)\)

 

To remember the signs, you can remember this acronym. "soap." The acronym dictates the signage sequentially. 

 

Same sign

Opposite sign

Always

Positive

 

\(a=x\\ b=\sqrt[3]{9769}\)

 

9769 is not a perfect cube, so this is the best we can do.

 

\((x+\sqrt[3]{9769})(x^2-x\sqrt[3]{9769}+\sqrt[3]{9769}^2)\)

TheXSquaredFactor  Nov 28, 2017

23 Online Users

avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details