omarspongebob55 omarspongebob55

13-02-2020
Mathematics

contestada

slove by completing the square x^2+4x-5=0

Respuesta :

amna04352 amna04352

18-02-2020

Answer:

-5 & 1

Step-by-step explanation:

[x² + 2(x)(2) + 2²] - 2² - 5 = 0

(x+2)² - 4 - 5 = 0

(x+2)² = 9

x+2 = +/- 3

x+2 = 3 x = 1

x+2 = -3 x = -5

Answer Link

Otras preguntas

Need help with this question please for a grade

according to the preamble, where the government's powers come from/originate?

In one theory, what led humans to move north into Europe? A) An Ice Age started and the planet got colder. B) An Ice Age ended and the planet warmed up. C)

A commuter travels many miles to work each morning. she has timed this trip five times during the last month. the time (in minutes) required to make this trip w

Which of the statements supports the conclusion from the diagram and the GIVEN information. a) Vertical angles are equal in measure. b) Perpendicular lines m

When money prices are used to facilitate comparisons of value, money is said to function as a _____ a. medium of exchange. b. store of value. c. payments-system

Which phrase correctly completes this sentence? __________ el reproductor mp3 porque prefiero estudiar y no escuchar música. Me gusta No puedo Me encant

what is the equation of the line of symmetry? and if you know please explain it to me.

Someone help with this one please!

A particle of mass 7.00 10-8 kg and charge 7.8-µc is traveling due east. it enters perpendicularly a magnetic field whose magnitude is 29.0 t. after entering th