annanguyen360 annanguyen360

02-08-2020
Mathematics

contestada

Find the zeros of y = x2 - 8x - 3 by completing the square.
O A. x=3+√7
B. X = +3
C. X = 4 + 119
O D. X= -4 + 119

Respuesta :

CSMedrano CSMedrano

02-08-2020

Answer:

Assuming that you meant 4+√19 is C.

Step-by-step explanation:

[tex]x^2-8x-3=x^2-2(4)x-3=x^2-2(4)x+16-3-16\\(x-4)^2-19\\(x-4)^2-19=0\\(x+4)^2=19\\x+4=\sqrt{19} \\x=-4+-\sqrt{19}[/tex]

Answer Link

camrynleaks61 camrynleaks61

17-09-2020

B. X=+3 by completing the square

Answer Link

Otras preguntas

Write down a number that has a value less than |4.7| I need the answer ASAP

⚠️PLEASE HELP⚠️Can someone do my essay. The prompt says how did the United States come to own the land on the west coast of North America, writing an informatio

Find the measure of angle zvy.

How did Henry VIII affect religion in England? He formed the Church of England. He wrote a new Bible for Protestant churches. He gave bishops control of the Chu

3m^3 x 5m^2 ty!! Have a good day!!

what is have of 480 200

God i don't understand this at all dkfjdfkgh thanks if you help, not really sure how brainly works

Add the correct Suffix to the root word.He despart...... wanted to be allowed to go on the trip. (( add the suffix at the ..... ))

Can someone please help me on this question if you know the answer. Answer choices: F. 1/4 G. 1/16 H. 1/2 J. 1/8

At four he decided to get it over with and started walking to Sandra's house, trudging slowly, as if he were waist-deep in water. Shame colored his face. How co