oarozzi oarozzi

16-04-2020
Mathematics

contestada

If x - y = 9, then x2 - 2xy + y2 =

Respuesta :

jimrgrant1 jimrgrant1

16-04-2020

Answer:

81

Step-by-step explanation:

Note the expansion of

(x - y)² = x² - 2xy + y² , thus

x² - 2xy + y² = (x - y)² = 9² = 81

Answer Link

Otras preguntas

Humanist believe that?

The ____ manufactures most blood cells

Which historical event most caused the us urban population to climb from 6 million to 44 million between 1860 and 1910?

Ray’s weight increased by 11% in the last two years. If he gained 16.5 pounds, what was his weight two years ago? A. 180 pounds B. 100 pounds C. 150 pounds D. 1

A flywheel makes 240 revolutions per minute. What is the angular velocity expressed in radians? 120π rad/min 240π rad/min 480π rad/min

Which statement describes the city of Alexandria? A.) Alexandria was a Greek city-state that invented drama and democracy. B.) Alexandria was an Egyptian trade

The second bank of the united states was controlled by __________. a. trade unions b. foreign diplomats c. private stockholders d. government officials

If the tip varies directly with the number of guests, which equation represents the relationship between the tip, t, and the number of guests, g?

A(r) is a function that gives the area of a circle with radius r. it can be written in equation form as A(r)=3.14r^2. what is the value of A(4)

In act 2.1 of The Tragedy of Julius Caesar, why do the conspirators not swear an oath? They intend to take an oath but forget to do so. Brutus thinks they are d