Question

arithmetic mean of two number is 7and their product is45.find the number.​

Answer 1

Step-by-step explanation:

let the numbers be x and y

given mean

x+y/2=7

x+y=14

x=14-y

product is 45

xy= 45

(14-y)(y)= 45

14y-y^2=45

y^2-14y+45=0

y^2-9y-5y+45=0

y(y-9)-5(y-9)=0

(y-5)(y-9)=0

nos are take any one y no

I am taking y =5

then product xy= 45

5x=45

x=9

numbers are 9 and 5