Given:
C)
[tex]2x^2+30y-3y^2+4xy-14-x[/tex]
Simplify the above expression,
[tex]2x^2+30y-3y^2+4xy-14-x=2x^2-3y^2-x+30y+4xy-14[/tex]
As there is no like terms in this expression,
Answer:
[tex]2x^2-3y^2-x+30y+4xy-14[/tex]
D)
[tex]20+3xy-3xy+y^2+10-y^2[/tex]
Simplify the expression,
[tex]\begin{gathered} 20+3xy-3xy+y^2+10-y^2 \\ =20+10+(3xy-3xy)+(y^2-y^2) \\ =30+0+0 \\ =30 \end{gathered}[/tex]
Answer: 30
