hellosmell46 hellosmell46

02-11-2021
Mathematics

contestada

if x=-7 and y=4 what would x^2-3xy=

Respuesta :

themathexpertise themathexpertise

02-11-2021

Answer:

While x = -7 and y = 4, x² - 3xy = 133.

Step-by-step explanation:

x² - 3xy

Substitute variables.

(-7)² - 3(-7)(4)

Square -7 remembering that (-x)² = x².

49 - 3(-7)(4)

Multiply -7 and 4.

49 - 3(-28)

Multiply -3 and -28.

49 + 84

Add 49 and 84.

133

Answer Link

Otras preguntas

which object in our solar system has the greatest density

What industry stimulated the widespread use of steam engines definition?

4√5 Irrational or rational? 25√4 Irrational or rational?

How do the one vote per state policy lead to unequal political representation?

is a complex mixture of weathered minerals materials from rocks, partially decomposed organic molecules, and a range of living organisms.

At some lakes people who fish must throw back any trout that is less than ten inches long. Write an inequality that represents the lengths of trout that may be

Obsessive-compulsive personality disorder lacks the __________ associated with ocd. a. obsessions and compulsive behavior b. personality c. severity d. relevanc

Xavier is unresponsive to most social stimuli. he rarely smiles, talks, or makes eye contact with others. he seems indifferent to everyone, including his parent

A group which has a defined purpose and is developed through the efforts of outsiders represent the dimension of what kind of group structure?

Ahmad had a balance of $46 in his checking account. He made a deposit of $58, and wrote checks for $17 and $30. How much money dose Ahmad have in his account?