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Mathematics
Haylie Ortega
24 April, 12:48
Multiply and reduce 3x^2 (3x-6/x)
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Ana Buckley
24 April, 16:16
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Simplify the following:
3 x^2 (3 x - 6/x)
Put each term in 3 x - 6/x over the common denominator x: 3 x - 6/x = (3 x^2) / x - 6/x:
3 x^2 (3 x^2) / x - 6/x
(3 x^2) / x - 6/x = (3 x^2 - 6) / x:
3 x^2 (3 x^2 - 6) / x
Combine powers. (3 x^2 (3 x^2 - 6)) / x = 3 x^ (2 - 1) (3 x^2 - 6):
3 x^ (2 - 1) (3 x^2 - 6)
2 - 1 = 1:
3 x (3 x^2 - 6)
Factor 3 out of 3 x^2 - 6:
3 x*3 (x^2 - 2)
3*3 = 9:
Answer: 9 x (x^2 - 2)
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