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
rjkz [21]
3 years ago
10

What is -3x^2-4x-4=0

Mathematics
1 answer:
ss7ja [257]3 years ago
8 0

Answer:

<h2>no real solution</h2>

Step-by-step explanation:

-3x^2-4x-4=0\qquad\text{change the signs}\\\\3x^2+4x+4=0\\\\\text{use the quadratic formula:}\\\\\text{for}\ ax^2+bx+c=0\\\\\text{if}\ b^2-4ac0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

\text{We have}\ a=3,\ b=4,\ c=4.\\\\\text{Substitute:}\\\\b^2-4ac=4^2-4(3)(4)=16-48=-32

You might be interested in
What is the answers to the picture
nalin [4]

5.6/4 = 1.4(4)/4

x = 4

4 0
3 years ago
Read 2 more answers
What is the conjugate? See image below! Please help asap
Stolb23 [73]

9514 1404 393

Answer:

  • 2 +3i
  • 8 -i√5
  • 7 +2i
  • 4 +√7

Step-by-step explanation:

The conjugate is found by changing the sign of the square root term.‡ (For this purpose, i = √-1.)

a) the sign of 3i is changed: 2 + 3i

b) the sign of sqrt(-5) is changed: 8 -sqrt(-5) = 8 -i√5

c) the sign of 2i is changed: 7 +2i

d) the sign of sqrt(7) is changed: 4 +√7

_____

‡ Actually, the conjugate of a binomial is formed by changing the sign <em>between</em> terms. The purpose is to allow the product of the binomial and its conjugate to be the difference of squares.

Conventionally, the conjugate of a complex number is the value with the sign of the imaginary part reversed. That is why (-2i+7)* = 7+2i.

4 0
2 years ago
I need help on these questions can u make sure u do all of them cuz some people just only do one problem.
charle [14.2K]

Answer:

Ans. = 18

Step-by-step explanation:

= -1 (-1)(-3)(-6)

= 1×18

=18

5 0
3 years ago
Read 2 more answers
2<br> 11 pt<br> 5n +3 = –2(1–7n)
Mkey [24]

Answer:

Step-by-step explanation:

5 0
3 years ago
Select all the ordered pairs that are solutions to the system.
miv72 [106K]

Answer:

WHAT DOES BRAINLEST MEAN???

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Here are the front elevation, side elevation and plan of a 3D shape, what diagram shows the 3d shape from these photos?
    11·1 answer
  • Simplify the following questions using the rules for exponents.
    14·1 answer
  • Which postulate proves that these two triangles are congruent?
    11·1 answer
  • Simplify (6b^2)^2 Please hurry !!
    14·2 answers
  • What is the domain of the function graph
    15·2 answers
  • Simplify 42-7-2-3-2-(1 point)<br> 218<br> -<br> 812<br> 68
    15·2 answers
  • What is the place value for 7 in 0.673
    11·2 answers
  • Place a check mark next to each equivalent expression
    14·1 answer
  • Decide if the situation involves​ permutations, combinations, or neither. Explain your reasoning. The number of ways a four dash
    10·1 answer
  • the cost to go bowling is a function in terms of the number of games bowled. the cost to bowl 2 games with a shoe rental is $16.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!