Answer:
[tex]x^5+9x^4-8x^3-2x^2+7x-4[/tex]
Step-by-step explanation:
standard form means that u order each term by highest to lowest degree (degree is like the sum of all the exponents of the variables in a term). [tex]x^5[/tex] is the highest, [tex]9x^4[/tex] is the second highest, [tex]-8x^3[/tex] is the third highest, [tex]-2x^2[/tex] is the fourth highest, [tex]7x[/tex] is the fifth highest, and [tex]-4[/tex] is the lowest because if it has no variable, it's equivalent to [tex]-4x^0[/tex] which is obviously the lowest. hope this helps