johnny977 johnny977

08-06-2014
Mathematics

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factor 10c^2-60cd +80d^2

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iloveonedirection iloveonedirection

08-06-2014

[tex]10c^2-60cd +80d^2[/tex]

[tex](2c - 8d) (5c -10d)[/tex]

[tex]this \\ is \\ because...[/tex]

[tex]2c*5c=10c^2[/tex]

[tex]2c * -10d=-20cd \\ -8d*5c=-40cd \\ -20cd-40cd=-60cd[/tex]

[tex]-8d * -10d = 80d[/tex]

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