How do you factor the expression $x^3y^3-125$ ?

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Answer 1 · 2018-05-24T18:59:34

$(xy-5)((xy)^2-5xy+25)$

Use the formula $a^3-b^3=(a-b)(a^2+ab+b^2)$

Answer 2 · 2018-05-24T19:24:21

$(xy-5)(x^2y^2+5xy+25)$

subtraction of cubes;-

$:.a^3-b^3=(a-b)(a^2+ab+b^2)$

$x^3y^3-125$

$:.=(xy-5)(x^2y^2+5xy+5^2)$

$:.=(xy-5)(x^2y^2+5xy+25)$

How do you factor the expression x^3y^3-125x^3y^3-125?