james234886 james234886

05-02-2019
Mathematics

contestada

solve for x by completing the square. 2x^2-4x+7=0

Respuesta :

mathecoach mathecoach

05-02-2019

Answer:

2x^2 - 4x + 7 = 0

x^2 - 2x + 3.5 = 0

x^2 - 2x = - 3.5

x^2 - 2x + 1 = 1 - 3.5

(x - 1)^2 = - 2.5

No solution because a quadratic term can't be negative.

Answer Link

Otras preguntas

how to multiply 2.86*5.3

A mountain with a base 5,608 feet below sea level rises 115,595 feet. what is the elevation above sea level of its peak?

has anyone read when things fall apart if so i need help

Which is true regarding homologous chromosomes? a. they are found in any normal diploid cell. b. a homologous pair of chromosomes are identical genetic copies o

When speakers use verbal cues what are they trying to achieve

A transition word that shows EMPHASIS:

Under the fugitive slave law of 1850, a free white in the north could be sentenced to imprisonment and be forced to pay a fine for doing which of these? a.advoc

All of the following are good recommendations for choosing a subject for a persuasive speech except

Rachel jogged along a trail that was one half of a mile long she jogged Along the trail 8 times how many miles did Rachel jog

An isolated region of liquefied necrotic tissue within a healthy body tissue is referred to as: