Level 2
Level 3
Level 3
Level 4
???
100

5x^2+21x+4

(5x+1)(x+4)

100

2x^2 −5x+3

(2x−3)(x−1)

100

5x^2 −14x+9

(5x−9)(x−1)

100

x^4 +3x^2 −10

(x^2 +5)(x^2 −2)

100

In which country would you find Mount Kilimanjaro?

Tanzania

200

2x^2+7x+5

(2x+5)(x+1)

200

8s^3 −w^3

(2s−w)(4s^2 +2sw+w^2 )

200

64b^3 +125a^3

(4b+5a)(16b^2 −20ba+25a^2 )

200

x ^4 −12x ^2 +32

(x ^2 −8)(x+2)(x−2)

200

What is the most common last name in the United States?

Smith

300

2x^2+11x+9

(2x+9)(x+1)

300

50x^10 −18x^2

2x^2 (5x^4 +3)(5x^4 −3)

300

81−x^8

(9+x^4 )(3+x ^2 )(3−x ^2 )

300

4p ^4 +p ^2 c ^2 −5c ^4

(4p ^2 +5c ^2 )(p+c)(p−c)

300

Where is the strongest human muscle located?

Jaw

400

g^3+8

(g+2)(g^2 −2g+4)

400

2x^2 −32x^4

2x^2 (1+4x)(1−4x)

400

3x^2 +42x+39

3(x+13)(x+1)

400

7x^2 −x^4 −12

−(x+2)(x−2)(x^2 −3)

400

What was bubble wrap originally invented for?

Wallpaper

500

8+m^3

(2+m)(4−2m+m^2)

500

d^9 −8b ^3

(d^3-2b)(d^6+2bd^3+4b^2)

500

27−64a ^9

(3−4a^3 )(9+12a^3 +16a^6 )

500

5x ^3 −4x−x ^5

−x(x+1)(x−1)(x+2)(x−2)

500

What animal had the most powerful bite in the world?

Nile crocodile