Which polynomials are in standard form?

x2y3 + y + 3xy2

– 5a3 + 12a2b – 15ab2 + b3

4xy + 2x2y2 + xy3

7x4 + 4x3y – 3x2y2 – y4

14b3 + ab3 – 6ab + 8ab2

3a4 + 4a3b – 6a2b2 – 4ab3 – b4

The Answers Are B. D. and F.

Step-by-step explanation:

Because watermelons are bigger than mice. :)

Option 2,4,6 are correct.

Step-by-step explanation:

To find : Which polynomials are in standard form?

Solution :

A polynomial is in standard form when its term of highest degree is first, its term of 2nd highest is 2nd and so on.

Now we check all,

1)

As y degree is 1 so it goes to last.

No, it is not standard form.

2)

Yes, it is standard form as all of them degree is 3.

3)

As first term degree is 2 and last two term degree is 4 so first term goes to last.

No, it is not standard form.

4)

Yes, it is standard form as all of them degree is 4.

5)

As third term degree is 2 and last term degree is 3 so third term goes to last.

No, it is not standard form.

6)

Yes, it is standard form as all of them degree is 4.

Therefore, option 2,4,6 are correct.

the opening of this porabola is facing up

step-by-step explanation: