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PLEASE HELP!!! Factor the expression below: 125x^3 + 512y^3
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\(5^3=125,8^3=512\) making this one the "sum of two cubes"
i can explain it to you ina sec
can you wait a sec?
@RhondaSommer yes
here
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alright This fits the form \[a^3+b^3\]
\[a^3+b^3=(a+b)(a^2-ab+b^2)\]
rewrite it that way
so rewrite it where a=5x and b=8y
@xapproachesinfinity i got this if you dont mind...
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:) i was willing to just you found me doing that
lol :)
@clamin rewrite it as \[a^3+b^3\] please
@clamin you there?
(5x + 8y)
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is it this like this?? (5x+8y)(25x^2 - 40xy+ 64y^2)
\[\large \color\red{a^3}+\color\green{b^3}\]
looks good to me
is all right??
\[(5x+8y)(25x^2−40xy+64y^2)\]
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yep looks good
yes, your answer is correct
great! :)
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