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
Ne4ueva [31]
3 years ago
15

Solve the following quadratic formula and enter the solutions below from smallest to largest. Round to the nearest tenth if nece

ssary.
Equation: 4x2+8x+7=4

Solution: Answer
and
Mathematics
2 answers:
lutik1710 [3]3 years ago
3 0

Answer:

\:x=-\frac{3}{2},x=-\frac{1}{2}

Step-by-step explanation:

Subtract 4 from both sides:

4x^2+8x+7-4=4-4

Simplify:

4x^2+8x+3=0

Solve with the quadratic formula:

x_{1,\:2}=\frac{-8\pm \sqrt{8^2-4\cdot \:4\cdot \:3}}{2\cdot \:4}

x_{1,\:2}=\frac{-8\pm \:4}{2\cdot \:4}

Separate the solutions:

x_1=\frac{-8+4}{2\cdot \:4},\:x_2=\frac{-8-4}{2\cdot \:4}

The solutions to the quadratic equation are:

\:x=-\frac{3}{2},x=-\frac{1}{2}

alexandr1967 [171]3 years ago
3 0

GIVEN:

  • <u>Equation</u>:— 4x² + 8x + 7 = 4

ANSWER:

On simplifying equation, we get

  • 4x² + 8x + 7 = 4
  • 4x² + 8x + 7 – 4 = 0
  • 4x² + 8x + 3 = 0

Now, We'll split the middle term to get the solution.

So, 4x² + 6x + 2x + 3 = 0

  • 2x(2x + 3) + 1(2x + 3) = 0
  • (2x + 1)(2x + 3) = 0
  • x = – 1/2 ; – 3/2

You might be interested in
Given the arithmetic sequence an = 4 − 3(n − 1), what is the domain for n? All integers where n ≥ 1 All integers where n &gt; 1
krok68 [10]

All integers where n ≥ 1.

We have given that the sequence,

a_{n} =4-3(n-1)

We have to find the domain for n.

<h3>What is the meaning of arithmetic sequence?</h3>

Arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. Difference here means the second minus the first.

That is, a_{n} =a+(n-1)d

where a = first term of sequence.

d =common difference.

n =number of terms which belongs to natural numbers

By  the definition of arithmetic sequence n starts with 1

Remember that,the natural number starts with 1

Now, in given sequence  for nth term

a_{n} =4-3(n-1)

The domain for n is All integers where n ≥ 1.

To learn more about the arithmetic sequence visit:

brainly.com/question/20118982

4 0
2 years ago
What number is halfway between .2 and .3
Ghella [55]

Answer:

.201

Step-by-step explanation:

3 0
3 years ago
If two lemons cost 15 cents, how many can be bought for 60 cents?
babymother [125]
4 lemons approximately

8 0
3 years ago
Read 2 more answers
What is an explicit formula for the following sequence 1,5,9,13,17 ? plssss helppp mee
morpeh [17]

Answer:

plus 4 every time

Step-by-step explanation:

1+4=5+4=9+4=13+4=17

7 0
3 years ago
-1 (x-4) in distibutive property
valina [46]

Answer:

-x+4

Step-by-step explanation:

-1(x-4) any expression multipled by 1 remains the same

-(x-4) remove the parenthesis

-x-4

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to x- 9&gt; -15?
    11·1 answer
  • After you measure the dimensions of a plot of land with a steel tape on a hot day, you come back and re-measure on a cold day. O
    11·1 answer
  • A bag contains 15 green, 18 yellow, and 16 orange balls. One ball is randomly selected. To the nearest percent, what is the prob
    11·1 answer
  • Solve for x. <br><br> −2 = 3/9x
    10·1 answer
  • Aiden is putting a carpet on the floor of his bedroom. The carpet is 6 feet long and 7 feet wide. What is the total area of Aide
    15·1 answer
  • There are 325 7th graders in 12 classes . determine the unit rate
    13·1 answer
  • Write the equation in standard form, then identify center and radius of circle.
    15·1 answer
  • Two horses are filling a pool
    10·1 answer
  • Select all pairs of vertical angles (ANSWER ASAP)
    15·1 answer
  • HELP PLS
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!