lesliegaspar225 lesliegaspar225

10-06-2020
Mathematics

contestada

solve 2x^2-4x-18=0 by completing the square. round the solutions to the nearest hundredth

Respuesta :

mhanifa mhanifa

14-06-2020

Answer:

1-√10

1+√10

Step-by-step explanation:

2x^2-4x-18=0
x^2-2x-9=0
x^2-2x+1-10=0
(x-1)^2-10=0
(x-1+√10)(x-1-√10)=0
x=1-√10
x=1+√10

Answer Link

Otras preguntas

what is the name of the large island body of water bordered by Iran, azerbaijan, russia, kazakhstan, and Turkmenistan

Compare the element hydrogen with the alkali metal sodium

express the product of 4-3i and 2+i in simplest a+bi form

There are chickens and pigs in a farm yard? There are 68 feet and 23 tails in the farm yard. How many chickens and how many pigs does grandma have?

The area of Alicia's garden is 81 square feet. What are the dimensions of her garden ?

Can somebody solve using elimination method algebra2

express the product of 4-3i and 2+i in simplest a+bi form

why is 1/6 greater than 1/8 but less than 1/3

If water and ethanol both have all 3 intermolecular bonds, why does ethanol evaporate so much quicker?

Suppose a magnetic reversal accoured today . How would new rocks at mid ocean ridges differ from rocks that formed last year