Question

Fi) If x - y = 5 and xy = 24, find the value of (x + y).​

Answer 1

Answer:

Step-by-step explanation:

x-y=5

xy=24

x^2+y^2-2xy=25

x^2+y^2-48=25

x^2+y^2=25+48=73

(x-y)^2=x^2+y^2+2xy=73+48=121

x+y=11

Answer 2

Answer:

(x + y ) = 8+3=11

Step-by-step explanation:

x - y = 5______(1)

xy = 24

=> y = 24 / x ____(2)

sub. this in eq.(1),we get,

x -24 / x = 5

=> x^2-24 = 5x

=> x^2 - 5x - 24 = 0

=> x^2 - 8x + 3x - 24 = 0

=> x ( x - 8) + 3 (x - 8 )

=> ( x - 8 ) ( x + 3 )

=> x = 8

sub this in eq (2), we get

y = 3

So (x + y ) = 8+3=11

Hope helps u and mark brainliest