Answer:
D). [tex]5x^7y^2+7x^6y^5-14x^3y^7+51x^2y^9[/tex]
Step-by-step explanation:
For better clarity let us re write the options
A).[tex]2xy^3+3x^3y^4-4x^4y^5+9x^5y^6[/tex]
B).[tex]8x^5-5y^4-2xy^5+x^2y[/tex]
C).[tex]x^3y^2-3x^2y-9x^4y^3+11x[/tex]
D).[tex]5x^7y^2+7x^6y^5-14x^3y^7+51x^2y^9[/tex]
To express polynomial with mixed variables in standard form, we begin by the highest coefficient of x to the smallest (we place high precedence on the coefficient x terms)
