pabitrastha2530 pabitrastha2530

13-12-2020
Mathematics

contestada

b) If (a - b) = 4 and ab = 2, find the value of a² + b².

Respuesta :

jimrgrant1 jimrgrant1

13-12-2020

Answer:

20

Step-by-step explanation:

note that

(a - b)² = a² + b² - 2ab , thus

a² + b² - 2ab = (a - b)² ( add 2ab to both sides )

a² + b² = (a - b)² + 2ab = 4² + 2(2) = 16 + 4 = 20

Answer Link

Otras preguntas

unequal distribution of wealth means that land and money are controlled by

solve for the equation a+b-c=180 for c

ian ran f fewer laps than matt. Who ran 17 laps. write an expression for the number of laps that Ian ran

Integer questions. Thank you!

6. Mike and his best friend Dan have the same birthday, but Mike is three years older than Dan. Let the variable x represent Mike's age and y represent Dan's ag

What were three weaknesses of non European regions that allowed European powers to control or colonize them

What in information about ancient india have scholars learned from The vedas? Do you think the Vedas are a reliable source of information? why or why not?

What is the solution to the inequality? -2/3 (2x - 1/2)<= 1/5x - 1

a rectangular prism has a volume of 240 cubic millimeters. its length is 12 millimeters, and its width is 10 millimeters. what is its height?

what is the difference between liquid and fluid friction