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

Someone tell me where everyone is going right please !!

Cause-and effect appeals Compare-and contrast appeals Inductive reasoning appeals Deductive reasoning appeals Definition Appeals Emotional appeals URGENT NEED

characteristics of carbohydrates

Which comparing and contrasting method is used in the following? My two dogs, Ruby and Parker, are best friends. They spend a lot of time together. However, the

In your own words, what is the definition for the word Interphase?

The Morris family is selecting a furniture set. A furniture set has a bed, a desk and a dresser. There are 4 beds, 2 desks, and 1 dresser to select from. How ma

Help me and I'll make u Brainliest and follow u

define the photosynthesis?

Read the temperatures shown to the nearest 0.5°C. I’ll mark you as brainlister

what is the answer for 9x² + 3xy - 12x - 4y