Evaluate Z: Z = 5x² - 5xy - 3y² for X

question 178

Essay

Evaluate z: z = 5x² - 5xy - 3y² for x = -6, y = + 5

---

Definitions:

State of Grace

A condition of being free from sin in the context of religious doctrine, or a period of flourishing or supreme excellence.

Protestant Ethic

A concept in sociology asserting that the values of hard work, thrift, and efficiency in one's worldly calling are influenced by Protestant faiths.

Frugality

The quality of being economical with resources or expenses; prioritizing saving and avoiding waste.

Thomas Hobbes

A 17th-century English philosopher known for his work on political philosophy, especially in his book "Leviathan," where he discusses the structure of society and legitimate government.