MATH HELP?

all edges of a cube are expanding at the rate of 3 centimetres per second. How fast is the surface area changing when the edge is 1 centimeter?

alex2020-08-26T00:50:09Z

S = 6x^2 , given dx/dt = 3 cm/s at x=1 cm
dS/dt = 12x(dx/dt) = 36 cm^2/s

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