Question

Write a pair of integers whose product is -15 And difference is 8.
It's very urgent

Answer 1

Step-by-step explanation:

x (y)=-15

x-y=8

let bigger no be x and smaller no be y

now you can solve it with methods given to you

Answer 2

Answer:

(5 , -3) (3 , -5)

Step-by-step explanation:

Let x and y be two numbers

According to the question

x - y = 8

x = y+8--------(1)

xy = -15--------(2)

Substituting (1) in (2)

xy = -15

(y+8)y = -15

y² + 8y +15 = 0

y² + 3y + 5y + 15 = 0

y(y + 3) +5(y + 3) = 0

(y + 3)(y + 5) = 0

Therefore ...

y = -3 (OR) -5--------(3)

Substituting (3) in (1)

x= y+8

x = -3 + 8 (OR) x = -5 + 8

x = 5 (OR) 3

Hence

The pairs are (5 , -3)  (3 , -5)

Hope it helps

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