Question

Is the expression below quadratic?5xsquared(2)- 18A.TrueB.False

Answer 1

A quadratic expression has the general form:

`\begin{gathered} ax^2+bx+c \\ \text{where }a\\e0 \end{gathered}`

In the expression:

`\begin{gathered} 5x^2-18 \\ a=5,b=0\text{ and c=-18} \end{gathered}`

So, is a quadratic expression beacuase satisfy the general formula with a = 5 (distinc of zero), b=0 and c=-18.