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You might need:Factor completely.640 – 10x2=Show Calculator

You might need:Factor completely.640 – 10x2=Show Calculator
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You might need:Factor completely.640 – 10x2=Show Calculator

User Botan
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\begin{gathered} 640-10x^2,\text{ since 640/10=64, we have} \\ 640-10x^2=10(64-x^2),\text{ since 64=8\textasciicircum{}2, we have} \\ =10(8^2-x^2) \\ =10(8-x)(8+x) \end{gathered}

User Ashik Mohammed
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