skyekwndall23 skyekwndall23
  • 02-11-2021
  • Mathematics
contestada

x+2= square root -13x-26

Respuesta :

clarch19
clarch19 clarch19
  • 02-11-2021

Answer:

x = -15 and x = -2

Step-by-step explanation:

x+2 = [tex]\sqrt{-13x-26}[/tex]

first step is to square both sides to eliminate the square root symbol

(x+2)² = -13x - 26

now use the 'foil' method on (x+2)² to get:

x² + 4x + 4 = -13x - 26

add 13x to each side to get:

x² + 17x + 4 = -26

add 26 to each side to get:

x² + 17x + 30 = 0

(x+15)(x+2) = 0

x+15 =0;  x = -15

x+2 =0;   x = -2

Answer Link

Otras preguntas

Why was Ivan III called "the Great"? A. He unified Russia, took the title of tsar, and rebuilt Moscow's Kremlin. B. He expanded the Russian Empire, freed the se
5 miles=8km how many miles in 80km
Is it possible to cut a rectangular prism so that its cross section is a circle orman ellipse?
Which one of the following is a measurement of energy used? A. 24 meters per second B. 60 milligrams C. 15 liters D. 6 joules
what problems did canal builders overcome
why do fractions need to have a common denominator before you add or subtract them?
What is a well-mixed mixture that contains a solvent and at least one solute
How to write an English poetry answer?
Valentine question: What happens to someone struck by Cupid's arrow?
Which biome is characterized by low annual rainfall, less than 26 centimeters (about 10-11 inches) per year?