### Home > CCA > Chapter 3 > Lesson 3.2.1 > Problem3-33

3-33.

Copy and simplify the following expressions by combining like terms. Using or drawing sketches of algebra tiles may be helpful.

1. $2x+3x+3+4x^2+10+x$

• $4x^2+(2x+3x+x)+13$

$4x^2+6x+13$

1. $4x+4y^2+y^2+9+10+x+3x$

• $(4y^2+y^2)+(4x+x+3x)+(9+10)$

$5y^2+8x+19$

1. $2x^2+30+3x^2+4x^2+14+x$

• Refer to parts (a) and (b).

1. $20+5xy+4y^2+10+y^2+xy$

• Refer to parts (a) and (b)