Question

There are n sweets in a bag 6 of the sweets are orange The rest of the sweets are yellow Hannah takes a random sweet from the bag She eats the sweet Hannah then takes at another random sweet from the bag She eats the sweet The probability of Hannah eats orange sweet is 1upon 3 Show that n square -n-90=0

Answer 1

shown -n-90=0 in the given picture

Answer 2

j'n aime pas 
( i dont know the answer)