Which of the following operations is commutative? Select one: O a. a b = b - 2a O b. a+b = 3a + 2b a +b b = c. a %3D ab O d. a vb = a^b www NE

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.