How will (9-2x+5x^4) be written in standard form?

Correct answer: \(5x^4-2x+9\)

In the standard form of a polynomial, terms are arranged in descending powers of the variable. Here, the highest power is \(4\), followed by \(1\), and then the constant term \(9\). Therefore, the correct standard form is \(5x^4-2x+9\). In option C, the \(x\)-term comes after the constant term, so the powers are not in descending order. Exam tip: place the term with the highest exponent first when writing a polynomial in standard form.