scarne23 scarne23
  • 03-07-2022
  • Mathematics
contestada

Which of the following are solutions to the equation below?


4x^2 + 4x + 1 = 9


Check all that apply

Which of the following are solutions to the equation below 4x2 4x 1 9Check all that apply class=

Respuesta :

abidmajid2006 abidmajid2006
  • 03-07-2022

Answer:

Option B and D

Step-by-step explanation:

Subtract 9 from both sides :

4x² + 4x - 8 = 0

Divide both sides by 4 :

x² + x - 2 = 0

Factorise using factorisation method :

x² - x + 2x -2 = 0

x(x - 1) +2(x-1) = 0

(x+2)(x-1) = 0

Solve for x

x +2 = 0   OR     x - 1 = 0        

x = -2       OR     x = 1

Answer will be Option B and D

Hope this helped and have a good day

Answer Link
ClaraVerlice
ClaraVerlice ClaraVerlice
  • 03-07-2022

Answer:

option b. –2 and d. 1 are correct.

*For detailed explanation refer to the attachment

Ver imagen ClaraVerlice
Answer Link

Otras preguntas

Can you please help me with this ☺️
add 10ft 3in + 3ft 9in + 8ft 10in​
The nth term of 8, 8^4, 8^7, 8^10
Whoever finishes this gets "brainliest".just for fun35a^7--11a^7
How did the Nile River influence the Egyptians beliefs about death and rebirth? How do you think that belief might have influence their art?
By way of tree diagram determine all likely outcome when a fair die is tossed
Read this sentence and pick the correct choice that makes this sentence correct: “Crabs and lobsters crawl along the ocean floor.” A. Change “crabs” and “lobste
Calculate the average atomic mass for element X
convert 256 ml to kl​
Can the range of a function be written like this {6,7,8,10} instead of like this [tex]6\leq x\leq 10[/tex]?