A quartic polynomial is a polynomial of degree 4, meaning it will have 4 terms in total. Since you're asked to write a quartic polynomial with 3 terms and a leading coefficient of -7, we can do that by combining terms.
Here's one example of a quartic polynomial with 3 terms and a leading coefficient of -7:
-7x^4 + 3x^2 - 5
In this example, the leading coefficient is -7, which means the coefficient of the term with the highest degree (x^4) is -7. The other terms are 3x^2 and -5.
It's important to note that a quartic polynomial normally has 4 terms, but in this case, you were asked to provide an example with 3 terms. This means we can exclude one of the terms typically found in a quartic polynomial.
Keep in mind that there are many possible quartic polynomials with 3 terms and a leading coefficient of -7. The example provided is just one of the many valid solutions.
