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 is the HCF of 2 x y and 6 x y?

What is the HCF of 2 x y and 6 x y?

can someone please help ? (:

Solve the simultaneous equations 2x+3y=-3 3x-2y=28

What cruel action did macbeth order to insure his status

70-q-q-2q=80 We'll this is confusing

What cruel action did macbeth order to insure his status

Baker university hired its first coachj in?

a map has a scale of 2 in : 25 mi. The map shows a highway is 31 inches long. how long is the actual highway?

1. What are the next three terms in the sequence?-1 ,9 ,19 ,29 . . .A. 38, 37, 32B. 40, 51, 62C. 39, 49 , 59D. 38, 47, 562. What are the next three terms of the