Samantha1999 Samantha1999

02-02-2018
Mathematics

contestada

Solve by factoring.

x2 + 6x = - 9. Hint: This is a double root.

Respuesta :

Аноним Аноним

02-02-2018

x^2 + 6x = -9
( x + 3)^2 - 9 = -9
(x + 3)^2 = -9 + 9 = 0

x + 3 = 0

x = -3 ( double root)

Answer Link

Otras preguntas

1. Solve the given linear equations for 'x': i ) 3(2x - 3) = 4(2x + 4) ii )2(x + 2) + 5(x + 5) = 4(x-8) + 2(x - 2) 2. Solve : 3x /4 - 7 /4 = 5x + 12 = 3. Show t

what is the x intercept of the function

what type of bulb is unaffected

The crime rate of a certain city is increasing by exactly 4% each year. If there were 350 crimes in the year 1990 and the crime rate remains constant each year,

What is the main reason why Sotomayor refers to the saying “a wise old man and wise old woman will reach the same conclusion in deciding cases”?

the graph shows the value of a certain model of car compared with it's age. which statement is true? A. The data show a negative linear relationship. B. The cor

The 225 g FeCl2 is about 1.8 moles. What is the molar concentration of the solution if the total volume is 450 mL?

they paint their house every year ( change to passive voice )

Why are many crusty breads cooked in long, thin loaves?

2(x + 2) + 5(x + 5) = 4(x-8) + 2(x - 2)