5a - 2a
3a
(3n^3+2n^4)+(3n^4-2n^3)
5n^4+n^3
4(3n-5)
12n-20
2n^2+6n
2n(n+3)
What is the perimeter of the rectangle?

14x^2+2x
14z+11-5z
9z + 11
(k^3+3)-(k^3-2k)
2k+3
5r(5r-4)
25r^2-20r
3b^2+9b
3b(b+3)
What is the perimeter of the triangle?
17x^2-x
x^2-4x+7-2x
x^2-6x+7
(-11n^4+6n^2+13n^5)+(2n^4-12n^5-6n^2)
n^5-9n^4
-3(-8k^2-5k-1)
24k^2+15k+3
4b^2+48b
4b(b+12)
What is the area of the rectangle?

14x^5+8x^4+6x^3
2x^2-4-3x+x^2-7
3x^2-3x-11
(-10x^4-10+x^2)+(-3x^4-2-9x)
-13x^4+x^2-9x-12
(a+5)(7a-3)
7a^2+32a-15
2n^2+4n
2n(n+2)
What is the area of the rectangle?

12x^3-30x^2
6-9p+11-2p+p-8+p
-9p+9
(12r^2+2r^3)-(-7r+8r^2)+(5r^3-13r)
7r^3-20r^2-6r
(-2x-5)(-7x+4)
14x^2+27x-20
5x^2+60x
5x(x+12)
The length of a rectangle is
4x^2+12x
and the area of the rectangle is
24x^4+72x^3
What is the width of the rectangle?
6x^2