Without actually calculating the cubes, find the values of (-10) Cube +(7) cube+(3) cube.
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You can do this by the formula....
a³+b³+c³= (a + b + c) (a²+ b²+ c²– ab – bc – ca) + 3abc
a³+b³+c³= (a + b + c) (a²+ b²+ c²– ab – bc – ca) + 3abc
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