QUESTION 4 Suppose that x2 -v3 +2xy= 12. Use implicit differentiation as presented in Section 14.5 to find dy dx O a. dy -3y2 +2x dx 2x+2y Ob. dy 2x+2y dx -3y +2x Oc. dy 3y2 -2x 2x+2y O d. dy -2x-2y dx -3y+2x %3D dx O e. None of the above choices. QUESTION 5 I'm out of ideas! Free points for picking (b)! O a (a) b. (b) OC (c) O d. (d)

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