jaredlewq
jaredlewq jaredlewq
  • 25-07-2018
  • Mathematics
contestada

if [tex] (x+y)^{2} [/tex]=36 and xy= -7, findthe value of [tex] x^{2}+y^{2} [/tex]

Respuesta :

DeanR
DeanR DeanR
  • 25-07-2018

[tex](x + y)^2 = 36[/tex]


[tex]x^2 + 2xy + y^2 = 36[/tex]


[tex]x^2+ y^2 = 36 - 2xy = 36- 2(-7)= 36+14=50[/tex]


Answer: 50




Answer Link

Otras preguntas

10. What 5 traits do the bird and its closest relative share?
Shane is trying to become a better active reader
Oxyhemoglobin is which color? and *deoxyhemoglobin appears deep purple or blue
Electronics engineers/ forty/ week/ a/ work/ usually/ hours.
Solve the following proportion problem. Round to two decimals as need. 2.4/x = 5
Pleas answer this question!
What is 5 90 in decimal form?
What physical and behavioral adaptations do zebras have that help them evade predators? (Site 1)
2. and Which two hemispheres are United States and Canada in GUYS I NEED HELP!!!!
What are the advantages of conducting research in different fields of disciplines?​