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Multiply
(a+4)^3
I have a^3+12a^2+?a+64
I am having trouble finding the number with the ?a
 one year ago
 one year ago
Multiply (a+4)^3 I have a^3+12a^2+?a+64 I am having trouble finding the number with the ?a
 one year ago
 one year ago

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yellowsky7Best ResponseYou've already chosen the best response.0
ok the answer that i have that is really not completed is correct or not?
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
ok i will try i am kinda rusty on this i havent did this for a long time
 one year ago

.Sam.Best ResponseYou've already chosen the best response.0
For (a+4)^3 (a+4)^3=(a+4)(a+4)(a+4) So, you can apply FOIL to (a+4)(a+4)(a+4) , two times. It is not complete, you have to apply the FOIL method, (a+4)(a+4)(a+4) When you distribute, you will get (a^2+8a+16)(a+4) Then try expanding it again.
 one year ago

.Sam.Best ResponseYou've already chosen the best response.0
There are some examples learning FOIL here: http://www.mathsisfun.com/algebra/polynomialsmultiplying.html
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
a*a*a=a^3 4+4+4=12a
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
48a where i have my ? at
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
i am trying to figure out how o get that number thats all and i keep getting answers that is not helping on how to find...
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
so could you please show me how did you get 48a?
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
\[(a+b)^3=a^3+3a^2b+3ab^2+b^3\]
 one year ago

Yahoo!Best ResponseYou've already chosen the best response.0
Or If u knw Binomial Theorem Use it..)
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
ok lets see here i am going to figure out how you got 48a
 one year ago

.Sam.Best ResponseYou've already chosen the best response.0
(a^2+8a+16)(a+4) When you're here, there's a shortcut to look at the coefficient of a, you look at which multiples gives you 'a'. From here you can see that 8a multiply by 4 gives you 32a And 16 multiply by a gives you 16a Since its adding up, 32a+16a=48a
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
thank you so it is a^3+12a^2+48a+64
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
ok i dont remember using that it has been years so some of this stough i remember how to....
 one year ago

yellowsky7Best ResponseYou've already chosen the best response.0
now i get it i am so sorry ppl thank you so much for bearing with me i havent been in school fo a long time and i am warming up on old math memories
 one year ago
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