Question

Which polynomial is in standard form?
4xy+3x3y5 - 2x5y7 +4x7y9
2x5y7+7y-8x2y5 - 12xy2
5x5 -9x2y2 - 3xy3 + 6y5
7x7y2 +5x11y5 - 3xy2 +2

Answer 1

the

first equation is the answer of this question.

explanation

where the xy is in sequence so it is the standard form of polynomial