chanchan70 chanchan70

01-12-2018
Mathematics

contestada

x^2-2y/y when x=20 and y=x/2

Respuesta :

Karsen4 Karsen4

01-12-2018

Answer:

I believe its 398

Step-by-step explanation:

Answer Link

WimpyNate WimpyNate

01-12-2018

Answer:

398

Step-by-step explanation:

x^2=400

substitute for y, 2y/y=(2*x/2)/(x/2)=x/(x/2)=x*(2/x)=2

400-2=398

Answer Link

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