(a+5b-4)³ = ??

Question

(a+5b-4)³ = ??

amistre64 · Answer

id just multiply it out

saifoo.khan · Answer

i go with amistre.

amistre64 · Answer

a +5b - 4
     a +5b - 4
   -----------
a^2 +5ab -4a
         5ab        +25b^2 -20b
                -4a               -20b +16
------------------------------
a^2+10ab -8a +25b^2-40b +16
                                      a +5b -4
                         ----------------

amistre64 · Answer

a^2+10ab -8a +25b^2-40b +16
                                      a +5b -4
                         ----------------
a^3 +10a^2b -8a^2 +25ab^2 -40ab +16a
         +5a^2b            +50ab^2-40ab          +125b^3-200b^2+80b

  running outta room :)

amistre64 · Answer

if anything type it into wolframalpha.com and theyll expand it for you

saifoo.khan · Answer

as amsitre copied from there! ^.^
jk

amistre64 · Answer

lol .... i wish :)  i always think of that afterwards

saifoo.khan · Answer

;]

amistre64 · Answer

$$\color{#870516}{wolframalpha.com}$$

amistre64 · Answer

im gonna javascript me up a text color program lol

saifoo.khan · Answer

$$\color{purple}{\text{I think u also taught me too! ^.^}}$$

amistre64 · Answer

$\color{red}{I}$ $\color{blue}{d}$$\color{green}{i}$$\color{orange}{d}$  $\color{purple}{:)}$

saifoo.khan · Answer

$$\color{red}{\text{Thnks fot the medal pal.}}$$

anonymous · Answer

:D