bokpeee bokpeee

01-09-2020
Mathematics

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if Xandy are integers and(x-y)=4, what is the main minimum possibile value of xy?

Respuesta :

Alfpfeu Alfpfeu

01-09-2020

Answer:

-4

Step-by-step explanation:

Hello,

x-y=4 <=> x=y+4

so, xy=y(y+4)

[tex]y(y+4)=y^2+4y=(y+2)^2-4[/tex]

so this is minimum for y = -2 and the minimum value is -4

thanks

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