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

The constant contracting of a muscle to rebuild its strength is ___________________.a. Overtrainingb. Aerobic exercisec. Isokinetic exercised. Cross-training

What would the Incans do to encourage loyalty?

Write a balanced equation for the complete combustion of butene (C₄H₈)

Tornadoes are typically found ___________________. a) In the leading side of a single-cell thunderstorm b) In the trailing side of a supercell thunderstorm c) I

What does y equal? Y=5(-6/-22)-2

An aqueous NaCl solutions is made using 112 g of NaCl diluted to a total solution volume of 1.0 L. Calculate the molarity, molality and mass percent of the solu

i got so much to do can i get some help on this?

1. How did the officer catch the man in the first joke? 2. Why did the man protest the ticket? 3. What did the officer mean when he said, "Have you ever caught

Through renal autoregulation, an increase in blood pressure will cause the afferent arteriole to ____ and therefore the GFR will ____. A. Constrict; Increase B.

Before sending track and field athletes to the Olympics, the U.S. holds a qualifying meet. The lower dot plot shows the times (in seconds) of the 888 sprinters