1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anni [7]
3 years ago
7

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

Mathematics
2 answers:
iris [78.8K]3 years ago
7 0
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

Dafna11 [192]3 years ago
7 0

Answer:

x=-7+/5 /2

Step-by-step explanation:

You might be interested in
Which transformations can be used to map a triangle with vertices A (2, 2), B (4, 1), C (4, 5) to A’ (–2, –2), B’ (–1, –4), C’ (
Aliun [14]
A is the the answer for you
6 0
4 years ago
4(-7)<br>show work please ​
Lostsunrise [7]

The equation is asking you to multiply.

= 4 * -7

= -28

Hope This Helped! Good Luck!

6 0
4 years ago
Read 2 more answers
3.) Find the quotient<br> 35)2,520<br> Answer:
AleksAgata [21]

Answer:

1.38888889

Step-by-step explanation:

Do the math on the calculator to get the answer.

3 0
3 years ago
It's candy time! Suppose 5 friends go out candy collecting. Starting out, Ms. Gleason gave each of them 12 pieces of candy. Then
sdas [7]

Answer:

6 hours

Step-by-step explanation:

First, since they all collected 510, you divide 510 by 5, to figure out how much each person got.

You then know that each of them got 102 candies, so now, you subtract 12 from from 102, since the teacher gave them that much in the beginning.

You're left with 90, so last step is to divide 90 by 15, since they collect 15 every hour, which you get left with 6. Meaning they collected candies for 6 hours

8 0
3 years ago
Read 2 more answers
Evaluate the expression 12 - 3y +420-4) for y = 3.<br> 2
DiKsa [7]

Answer:

56

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • I really need help guys can some one plz help me it's for 10 points
    13·1 answer
  • PLEASE HELP ME FAST
    15·1 answer
  • What is radical 50 - radical 2
    11·2 answers
  • Use the diagram shown to find the volume of the sphere. Use 3.14 for pi. Round your answer to the nearest hundredth.
    11·2 answers
  • The length of a rectangle is 3 centimeters less than twice the width. If the perimeter of the rectangle is 24 centimeters, find
    12·1 answer
  • Can someone please help me answer this ​
    13·1 answer
  • In which set are all of the numbers solutions to the inequality x &lt; -3?
    12·1 answer
  • Gavin wrote the equation p = StartFraction 3 (s + 100) Over 4 EndFraction to represent p, the profit he makes from s sales in hi
    5·1 answer
  • Find a and y<br> ................
    15·1 answer
  • 2x+3≥7 OR 2x+9&gt;1 <br> Please help me
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!