In the equation

f(x) = -3( (2-3x^2)^-1/2 + 3x^2(2-3x^2)^-3/2)

my text book jumps to the simplification

f(x) = -6(2-3x^2)^-3/2)

Could someone please explain this simplification?

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- Aug 6th 2010, 10:46 PMHefotosSimplifying problem
In the equation

f(x) = -3( (2-3x^2)^-1/2 + 3x^2(2-3x^2)^-3/2)

my text book jumps to the simplification

f(x) = -6(2-3x^2)^-3/2)

Could someone please explain this simplification? - Aug 6th 2010, 11:20 PMGrandad
- Aug 6th 2010, 11:28 PMHefotos
Very well explained, thankyou