<PRE><B>Question 118724</B>


{{{7x^3(2x+3)}}} Start with the given expression



{{{(7x^3)(2x)+(7x^3)(3)}}} Distribute {{{7x^3}}} among the terms in the parenthesis



{{{14x^4+(7x^3)(3)}}} Multiply {{{7x^3}}} and  {{{2x}}} to get {{{14x^4}}}

 

{{{14x^4+21x^3}}} Multiply {{{7x^3}}} and  {{{3}}} to get {{{21x^3}}}

 


-------------

Answer:

So {{{7x^3(2x+3)}}} distributes to {{{14x^4+21x^3}}}


In other words, {{{7x^3(2x+3)=14x^4+21x^3}}}

</PRE>