aeisapooh aeisapooh
  • 01-10-2017
  • Mathematics
contestada

It is given that a+b=6 and ab=7. Find the value of a^2 + b^2.

Respuesta :

Аноним Аноним
  • 01-10-2017
Use the identity:-

a^2 + b^2  = (a + b)^2 - 2ab

Plugging in the given values;-

a^2 + b^2 = 6^2 - 2*7    =  36-14  = 22 Answer
Answer Link

Otras preguntas

Please help me with this on the picture
2.5: Một người nặng 72kg ngồi trên sàn treo nặng 12kg như hình vẽ. Hỏi người đó phải kéo dây với một lực bằng bao nhiêu để sàn chuyển động nhanh dần đều lên cao
help me please help me please​
today is my birthday congratulate meeeee? ​
PleasePlease help me solve these articles with me
ASAP I NEED HELP WITH THIS!!! Find the area the sector. A.1083pi/4in B.38pi in C. 57/4pi D.1083/8pi in
if a 27% is a sale profit , how much profit is in the sale of $4650?pls explain if u can. thanks!!​
Which is the function of a thesis statement?
Calculate the percent error in the atomic weight if the mass of a Zn electrode increased by 0.3681g and 6.514x10-3 moles of Zn was produced. You may assume the
HELPPPP ASSAPPPPPP PLZZZ