Question

The variables X, Y, and Z represent polynomials where X = a, Y = 3a – 5, and Z = a^2 + 2. What is X^2Y – Z in simplest form?

a) 2a^2 – 5a – 2
b) 3a^3 – 6a^2 – 2
c) –3a^3 – 2
d) –3a^2 – 2

Answer 1

HI!!

Answer 2

\[X^2Y-Z=a^2(3a-5)-(a^2+2)\] by substitution