Combinations

Find the combination of 9 choose 4

• 9

• 36

• 84

• 126

Find the combination of 10 choose 5

• 120

• 210

• 252

• 2

Find the combination of 8 choose 8

• 8

• 1

• 0

• 16

Find the combination of 6 choose 3

• 6

• 15

• 20

• 2

Find the combination of 20 choose 8

• 77,520

• 125,970

• 881,790

• 167,960

Find the combination of 11 choose 0

• 11

• 1

• 0

• 55

Find the combination of 14 choose 2

• 91

• 364

• 1001

• 78

Find the combination of 7 choose 5

• 21

• 35

• 7

• 2

Simplify $\left(-3x^2\right)^5$  

•  $-15x^7$  

•  $-15x^{10}$  

•  $-243x^7$  

•  $-243x^{10}$  

Simplify $\left(2x^2\right)^3$  

•  $8x^6$  

•  $2x^6$  

•  $8x^5$  

•  $2x^5$