MaryvonneHodge MaryvonneHodge

11-12-2018
Mathematics

contestada

What are the solutions of the equation (2x + 3)^2 + 8(2x + 3) + 11 = 0? Use u substitution and the quadratic formula to solve.

What are the solutions of the equation 2x 32 82x 3 11 0 Use u substitution and the quadratic formula to solve class=

Respuesta :

meadow77 meadow77

11-12-2018

u=2x+3, x=u/2-3/2
u^2+8u+11=0
u1=(-8+sqrt(64-44))/2=-4+sqrt(5)
u2=-4-sqrt(5)
x1=u1/2-3/2=-7/2+sqrt(5)/2
x2=u2-3/2=-7/2-sqrt(5)/2

Answer Link

tashaketchup tashaketchup

06-11-2019

Answer:

x=-7+/5 /2

Step-by-step explanation:

Answer Link

Otras preguntas

What did Darwin notice about life on the Galápagos Islands?

what is the difference between whitecap and swell

how do you think king George III reacted to the Declaration upon reading it

I have an assignment on Medicine Man, and I was sick when they were watching the movie. The teacher is expecting me to know what is going on.. Any helpers? The

What was the purpose of the Titanic's inner hull?

Solve each equation by completing the square. If necessary, round to the nearest hundredth.Please show steps, steps needs.1. b^2+10b=752. n^2-20n=-753.. t^2+8t-

If you are only given slope intercept how would u sketch the line ?

What did conservatives fear would happen in the chaotic climate after WWI?

How would japans physical geography affect the development of Japanese government And society

A container is shaped like a rectangular solid with sides of 3 inches, 3 inches, and 11 inches. What is its approximate capacity, if 1 gallon equals 231 cubic