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
Bumek [7]
3 years ago
8

Solve using the quadratic formula. Show all work. Write each solution in simplest form. No decimals.

Mathematics
1 answer:
aleksandrvk [35]3 years ago
6 0

Answer:

x = -2+√3i and -2-√3i

Step-by-step explanation:

The formula for the general formula is expressed as;

x = -b±√b²-4ac/2a

Given the expression

x²+4x+7 = 0

a = 1, b = 4 and c = 7

Substitute

x = -4±√4²-4(1)(7)/2(1)

x  = -4±√16-28/2

x = -4±√-12/2

x = -4±√4*-3/2

x = -4±2√-3/2

x = -4±2√3i/2

x = -4+2√3i/2 and  -4-2√3/2

x = -2+√3i and -2-√3i

You might be interested in
Which is the graph of F(x)= (x+3)(x-2)
KonstantinChe [14]

Answer:

Vertex: (-1/2, -25/4)

Focus: (-1/2, -6)

Axis of Symmetry: x=-1/2

Directrix: y=-13/2

Step-by-step explanation:

x = -2, -1, -1/2, 1, 2

y = -4, -6, -25/4, -4, 0

4 0
2 years ago
Read 2 more answers
Abby earns $48 for babysitting for 6 hours . At that rate , how many hours will it take her to make $72
never [62]

Answer:

nine hours

Step-by-step explanation:

48 divided by 6 is 8 and 8 times 9 is 72

8 0
3 years ago
Read 2 more answers
Slope 2 passing through 10,8
nlexa [21]
Use y=Mx+b    with x=10 and y=8
4 0
3 years ago
Please help me do number 5
Blizzard [7]
Make more sense ou of this question and I can help you out more ok?
7 0
3 years ago
the angles of a quadrilateral measures 80,100,100,80 in this order what kind of quadrilateral has this shape?
stepladder [879]
This is a rhombus I believe
5 0
3 years ago
Read 2 more answers
Other questions:
  • Slope intercept form of y=-1/7x+22/7
    15·1 answer
  • Of the 4,092 pedestrian fatalities nation wide in 2009, what percent were Floridian
    14·1 answer
  • 5x/3= -10<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B5x%7D%7B3%7D%20%20%3D%20%20-%2010" id="TexFormula1" title=" \frac{5x
    6·1 answer
  • After the drama club sold 100 tickets to a show, it had $300 in profit. After the next show, it had sold a total of 200 tickets
    6·2 answers
  • Distributive property
    6·2 answers
  • 12.<br> 1/2(4x — 2) – 2/3(6x + 9) &lt;4
    13·2 answers
  • Which decimal is shown by the model?<br><br> A, 10.0<br> B,1.0<br> C,0.1<br> D,0.01
    11·2 answers
  • Help me out please :)
    14·1 answer
  • Which is the equation of a circle with its center at (-4,2) and a radius of 4?
    11·1 answer
  • You and your best friend Janine decide to play a game. You are in a land of make believe where you are a function, f(t), and she
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!