Question

Reema and Sohini bought (x^2 - 9) mangoes.They divided into (x+3) groups.Each group has three rotten mangoes.How many good

Answer 1

Answer:

x - 6

Step-by-step explanation:

divide number of mangoes bought by number of groups, that is

$\frac{x^2-9}{x+3}$

= $\frac{(x+3)(x-3)}{x+3}$ ← numerator is difference of squares

cancel the factor (x + 3) on numerator/denominator

number in each group = x - 3

subtract 3 rotten mangos from group for good mangoes

good mangoes = x - 3 - 3 = x - 6