Question

find two integers having a product of negative 15 and sum of positive 2

Answer 1

Answer:    -3 and 5

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Step-by-step explanation:

Let two no. be x and y

By qsn,  x y = -15 ------> i

and x + y = 2 ------>ii

Now,

( x- y )^2 = (x +y )^ 2 -4xy  ----> formula

            = 2^ 2 - 4 * (-15)

           = 4 + 60  = 64

i.e x- y = 8------>iii

so adding ii and iii eqn,

we get, 2x= 10 i.e x= 5

then,  5* y = -15

i .e y =-3

Hence x= 5 and y= -3