Question

What is the minimum sum of two numbers whose product is (-18)?
A) -7
B) -17
C) 3
D) 17​

Answer 1

Let the two numbers be x and y.

$= > x \times y = - 18$

$= > x + y =?$

All possible pairs of x and y with their sums are :

$= > ( - 1,18) = > 17$

$= > ( - 2,9) = > 7$

$= > ( - 3,6) = > 3$

$= > ( - 6,3) = > - 3$

$= > ( - 9,2) = > - 7$

$= > ( - 18,1) = > - 17$

And minimum sum of them is -17.

And hence two numbers are -18 and 1.

Hope this answer helps you ^_^ !