Question

Woute the pair of infeger in which
multiplication is (45) and diference is 12​

Answer 1

Answer:

x=15 or -3

y = 3 or -15

Step-by-step explanation:

Let pair of integers be x and y

so x-y =12 (given)

so x=12+y.......... (i)

and

. x. y = 45 (given)

by putting (i)

(12+y) * y = 45

12y+y² = 45

y²+ 12y -45

By factorisation method

y² + 15y - 3y -45

y (y+15) - 3 (y+15)

(y-3) (y+15)

so y=3

or y= -15

therefore

if y = 3

x= 12+3

x= 15

or if y = -15

x= 12+(-15)

x = -3