Question

Let Z be the set of integers. If A = {x ∈ Z : 2^{(x +2)(x^2 - 5x + 6)} = 1} and B {x ∈ Z : -3 < 2x - 1 < 9}, then the number of subsets of the set A × B, is : 

(1) 2¹² 

(2) 2¹⁵ 

(3) 2¹⁸ 

(4) 2¹⁰

Answer 1

Option 2) 215  is correct