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im trying to solve this for x:

(16-x^2)^3/2 = 40

ive simplified it by taking the square root, so i get:

sqrt(16-x^2)^3) = 40

now i square both sides and i get:

(16-x^2)^3 = 1600 (Not sure if this is right)

im not sure what to do next. i think i can take the cube root of both sides, but im not sure.

Can someone please help me.

thanks

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# Solve this for x: (16-x^2)^3/2 = 40

**Physics Forums | Science Articles, Homework Help, Discussion**