tylerjaysloneox8xtd tylerjaysloneox8xtd

04-09-2018
Mathematics

contestada

Solve for x in the equation x^2 - 4x - 9 = 29

Respuesta :

JiakSai JiakSai

04-09-2018

x² - 4x - 9 = 29

x² - 4x = 38

x² - 4x + (2)² = 38 + (2)²

(x - 2)² = 42

x - 2 = ±√42

x = √42 + 2 or x = -√42 + 2

x = 8.48 (nearest hundredth) or -4.48 (nearest hundredth)

Answer Link

Otras preguntas

17.2 in expanded form

Select the graph and the description of the end behavior of f(x) = x3 + 2.

A rectangular prism has a length of 20 in., a width of 2 in., and a height of 3 1/4 in. The prism is filled with cubes that have edge lengths of 1/4 in. How m

Which of the following is a non locomotor skill A) Running B) Twisting C)Swimming D)Biking

Which sentence contains a correctly identified compound object in a prepositional phrase? Catherine knew that this news would be devastating to Marcus and me

frank has 50 dollars to buy art supplies. he wanted to buy chips and dip. he has already bought seven bags of chips that cost him 32 dollars.

What is the abiotic factor for a grizzly bear

Which was not a manufacturing focus for early America? Transportation Textile Metals Animal hides

which graph shows a proportional relationship ?

answer all of these, i can't figure them out