Chapter A.5, Problem 3E

To determine

(a)

To find:

To find the following equation $2x^2-5x+3=0$ are quadratic.

To determine

(b)

To find:

To find the following equation $x^2=x^2+4$ are quadratic.

To determine

(c)

To find:

To find the following equation $x^2=4$ are quadratic.

To determine

(d)

To find:

To find the following equation $\frac{1}{2}{x}^2-\frac{1}{4}x-\frac{1}{8}=0$ are quadratic.

To determine

(e)

To find:

To find the following equation $\sqrt{2x-1}=3$ are quadratic.

To determine

(f)

To find:

To find the following equation $\left(x+1\right)\left(x-1\right)=15$ are quadratic.