Subject: Discrete Mathematics and its Application Please can someone answer and provide a thorough explanation and analysis. Thank you, I truly appreciate it. Let Z(x) be the predicate "x is an integer" and let R(x) be the predicate "x is a real number" a) Is the sentence below true or false? What does it say about the number 5? n 6= 0m 6= 0(Z(n) Z(m) n2 = 5m2) b) Is the sentence below true or false? What does it say about quadratic polynomials? abcd[a 6= 0 R(a) R(b) R(c) (R(d) ad2 + bd + c 6= 0)]