Question

this is a confusing question which polynomial is written in standard form x^3y^2+4x^4y+10x^9 or X^4y^2+4x^4y^5 + 10x^2 or xy^2+4x^3y^8+10x^2 or x^4y^5+4x^3y^2+10x^2

Answer 1

Satandard form is when the powers are written in decreasing order


first one
we see at x^9 after x^3, that is unacceptable

2nd one
y^5 is near the end after y^2, unacceptable

3rd one
x^3 is after x^1

4th one
correct

answer is last one
x^4y^5+4x^3y^2+10x^2