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
mojhsa [17]
2 years ago
7

Tran is solving the quadratic equation 2x2 – 4x – 3 = 0 by completing the square. His first four steps are shown in the table.

Mathematics
1 answer:
natulia [17]2 years ago
7 0

The solution to the quadratic equation 2x² - 4x - 3 = 0 is x = 1 ± √2.5

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Solving the polynomial using completing the square:

2x² - 4x - 3 = 0

First divide through by 2:

x² - 2x - 3/2 = 0

add 3/2 to both sides:

x² - 2x - 3/2 + 3/2 = 0 + 3/2

x² - 2x = 3/2

add the square of half the coefficient x to both sides:

x² - 2x + 1 = 3/2 + 1

(x - 1)² = 2.5

taking square root:

x - 1 = ±√2.5

x = 1 ± √2.5

The solution to the quadratic equation 2x² - 4x - 3 = 0 is x = 1 ± √2.5

Find out more on equation at: brainly.com/question/2972832

#SPJ1

You might be interested in
Karen and James both had 30 stocking stuffer items on their shopping list. After black Friday shopping Karen had finished 35% of
mihalych1998 [28]

Answer: 7.5 items

Step-by-step explanation:

Both Karen and James had 30 stocking items.

Karen bought 35% of her items;

= 35% * 30

= 10.5 items

James has bought 60%;

= 60% * 30

= 18 items

= 18 - 10.5

= 7.5 items

6 0
3 years ago
Help on this question 18 pls
boyakko [2]
Either it is C or D or E.
3 0
3 years ago
What is the measure of each interior angle in a regular 30-gon?
Rasek [7]
Exterior angles always add up to 360 degrees so for 30-gon each exterior angles is 12 degrees (360/30)

To get the interior angles you subtract 180 from 12 to get 168 degrees
5 0
3 years ago
If Juan earns $7 per hour plus $20 per week making picture frames.
kaheart [24]
Not enough information
5 0
3 years ago
If you add 8 g of salicylic acid to 84 g of an ointment base what is the final concentration of the product
Anastaziya [24]

Answer:

concentration = 8/84 + 8 = 0.8696

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • When solved for x, which inequality represents the number line?
    10·2 answers
  • 15 points!
    14·1 answer
  • 172 + (-167) + (-10) + (-144)
    10·1 answer
  • In how many ways can we put five identical fruits into three bowls? Note that the bowls may be empty. The answer is not 243.
    6·1 answer
  • Which expressionis equal to (-7x+5.1y)-(-9x+5.3y)
    14·1 answer
  • Measurement and circles
    7·2 answers
  • PLEASE HELP!!!!!!
    14·1 answer
  • Mrs. Adele is buying a new tie from Macy's. It says
    8·1 answer
  • What is 4 fiths plus one third
    8·2 answers
  • PLS ANSWER QUICK THX
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!