SOLUTION: If a is an even integer and b is an odd integer, which of the following must be even? (A) ab + 1 (B) a^2 + 3 (C) a^2 + b^2 (D) a^2b^2 +1 (E) b^2 + 3

Algebra ->  Problems-with-consecutive-odd-even-integers -> SOLUTION: If a is an even integer and b is an odd integer, which of the following must be even? (A) ab + 1 (B) a^2 + 3 (C) a^2 + b^2 (D) a^2b^2 +1 (E) b^2 + 3       Log On