To write the expression in quadratic form  exponent of

the first term should be the square of the exponent of the second term.

The expression is .

Chceck: Exponent of the first term = square of the exponent of the second term.

The equation is  correct.

Therefore, the expression cannot be written in quadratic form.

Because the no constant term in the expression.

The expression cannot be written in quadratic form.