For problems 44-46 use the following equation: 5x^2 + 27 - 18 = 0

44.) What is the quadratic term?
A.) 5. B.) 5x^2. C.) -18. D.) 27x

45.) What is the constant term?

A.) 27. B.) 5. C.) 5x^2. D.) -18

46.) What is the linear term?
A.) 27x. B.) 5. C.) 5x^2. D.) -18

I think you mean 5x^2 + 27x - 18 = 0

The quadratic term is 5x^2
The linear term is 27x
The constant term is -18

This is checking to see if you know definitions. Obviously, you do not, and therefore need to learn them.

5x² is quadratic(2nd degree) term
27x is linear(1st degree) term
-18 is constant(no x, or xº term)

Your questions are not clear. See Wikipedia for the quadratic equation.