johnny977
johnny977
08-06-2014
Mathematics
contestada
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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