Question

Which polynomials are in standard form? Check all that apply.

12x

10x + 3x2 – 8

15x + 4

2–7x

Answer 1

Standard form means write terms in descending powers of x (highest exponent first).

So:
- 12x — yes (already in standard form).
- 10x + 3x2 – 8 — no (should be 3x^2 + 10x − 8).
- 15x + 4 — yes (degrees 1 then 0).
- 2 – 7x — no (should be −7x + 2).