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5 votes
Factor this question Q3+125

User Cassmtnr
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1 Answer

6 votes

q^3+125

write 125 as a power in base 5


q^3+5^3

then, apply the rule for the addition of cubes


\begin{gathered} a^3+b^3=(a+b)\cdot(a^2-a\cdot b+b^2) \\ \text{then, } \\ q^3+5^3=(q+5)\cdot(q^2-5x+5^2) \\ q^3+5^3=(q+5)\cdot(q^2-5x+25) \end{gathered}

User Matthew Mullin
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