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

What is an incentive

Derive an equation that relates the initial release height hxhx of block xx and the speed vsvs of the two-block system after the collision in terms of mxmx, mym

20 identical prizes are distributed to a group of 180 people. how many ways are there to distribute the prizes if each person can receive at most one prize

Your goal is to navigate a robot out of a maze. The robot starts in the center of the maze facing north. You can turn the robot to face north, east, south, or w

What is the irony about the caged bird singing?

What do the animals do after the humans have been chased from the farm?

What to do in 49 days after death?

The table shows five transactions and the resulting account balance in a bank account, except some numbers are missing. Fill in the missing numbers. transactio

jjhgj hu u gygy ui i i

3. find the sum, if it exists, of the infinite geometric series s = 21+9+3.86 +.... o s = 36.75 = this infinite geometric series diverges. o s = 12.1 o s= 15.75