Thread: Prove the following solutions..

a) show that x^(-2/3) = 1/2 is x= square root (8)

b) 2x^3 - 3x^2 - 8x +12 = 0 are x = -2,2, 3/2

*dont just put the values of x into the equation..you need to prove itt

Originally Posted by yess

a) show that x^(-2/3) = 1/2 is x= square root (8)

b) 2x^3 - 3x^2 - 8x +12 = 0 are x = -2,2, 3/2

*dont just put the values of x into the equation..you need to prove itt

For the first one, consider what happens when you raise both sides to (-3/2).

b)





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