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

In a local city, the temperature at noon is -3ºC. The temperature is expected to decrease by 2.5°C each hour until the temperature reaches -18°C. How many hours
Madrid Company plans to issue 8% bonds with a par value of $4,000,000. The company sells $3,600,000 of the bonds at par on January 1. The remaining $400,000 sel
Solve 1. x2 + x - 6 = 0
the ordered pair (-1,-5) is a soulation of which system
A major difference between the Zapotec civilization and the ancient Egyptians is that A) the Egyptians had no access to trade. B) the Zapotecs were not located
If a person is kicking there legs three times every four seconds what is the frequency.
Need some help with these plz
which choice is equivalent to the expression below?​
through: (-1,4), perpendicular to y = x
A patient was transferred to ICU from the emergency department. The patient had an accident and had major bleeding. The physician in the ICU requested a Nephrol