hopensansillaNi hopensansillaNi

04-11-2016
Mathematics

contestada

which identity could be used to rewrite the expression x^6-27
A difference of squares
B two squares
C difference of cubes
D quadratic formula

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Nirina7 Nirina7

09-11-2016

the answer is C: difference of cubes
proof
x^6-27=(x^2)^3 - 3^3, because (x^2)^3 =x^2*3=x^6

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scme1702 scme1702

09-11-2016

C. Difference of cubes
This is because the expression:
x⁶ - 27
can be simplified to:
(x²)³ - 3³

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