Question

Which polynomial is in standard form?

A. 2x^4+6+24x^
B. 6x^2-9x^3+12x^4
C. 19x+6x^2+2
D. 23x^9-12x+19

Answer 1

D. Because the standard form goes from largest exponent to smallest.
D is the only that does that.
Ex.
x^4 + x^3 + x^2 + x + 1

Answer 2

D. 23x^9-12x+19

Explanation:

Standard form of a polynomial starts with largest exponent and then exponent decreases

A. 2x^4+6+24^x

It is not a polynomial because it has exponent x

B. 6x^2-9x^3+12x^4

It is not in standard form because first term is x^2 (smallest exponent)

C. 19x+6x^2+2

It is not in standard form because the exponents are increasing

D. 23x^9-12x+19

It is in standard form because the exponents are decreasing