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
VMariaS [17]
3 years ago
5

What are the answers to the following quadratic equation: x^2-4x-12

Mathematics
2 answers:
Alla [95]3 years ago
6 0

Answer:

6 and -2

Step-by-step explanation:

x^2-4x-12

set up equal to zero

x^2-4x-12=0

lets factor:

(x-6)(x+2)=0

x-6=0

x=6

or

x+2=0

x=-2

Fiesta28 [93]3 years ago
5 0

Answer:

x=6  x=-2

Step-by-step explanation:

x^2-4x-12 = 0

Factor

What two numbers multiply to -12 and add to -4

-6*2 = -12

-6+2 = -4

(x-6)(x+2) =0

Using the zero product property

(x-6) =0   x+2 = 0

x=6  x=-2

You might be interested in
Un alumno multiplica un número por 32 en lugar de multiplicarlo por 23, obteniendo un producto mayor en 54 al producto original.
romanna [79]

Answer:

La suma de cifras del producto original es igual a 12.

Step-by-step explanation:

De acuerdo a la información proporcionada, si multiplicas un número "x" por 32 su resultado sería igual al producto original "y" más 54 dado que dice que se obtiene un producto mayor en 54 al producto original, lo que se puede expresar de la siguiente forma:

32x=y+54

Además, se puede inferir a partir del enunciado que si el número x se hubiera multiplicado por 23 el resultado habría sido el producto original que lo denominamos como "y", por lo que puedes decir que:

y=23x

Ahora puedes reemplazar y=23x en 32x=y+54 y despejar x:

32x=23x+54

32x-23x=54

9x=54

x=54/9

x=6

Finalmente, puedes reemplazar el valor de x en y=23x:

y=23x

y=23*6

y=138

Suma de cifras: 1+3+8 = 12

De acuerdo a esto, la respuesta es que la suma de cifras es igual a 12.

5 0
3 years ago
Help me with this math question
nasty-shy [4]

Answer:

\huge \boxed{K=20}\checkmark

B. 20

Step-by-step explanation:

<em>First, you divide by 5 from both sides of equation.</em>

<em>\displaystyle \frac{5k}{5}=\frac{100}{5}</em>

<em>Simplify, to find the answer.</em>

<em>\displaystyle 100\div5=20</em>

<em>\huge \boxed{K=20}, which is our answer.</em>

6 0
3 years ago
Read 2 more answers
what is the simple formula corresponding to the explicit formula if the first term of the sequence is -10 and the difference bet
mote1985 [20]
Look in the file below

8 0
3 years ago
Find the perimeter. Simplify your answer.<br> 4y-5<br> 10y-4<br> 7y+8<br> 74-5
KonstantinChe [14]

(10y - 4) + (7y + 8) + (7y - 5) + (4y - 5) =

= 10y - 4 + 7y + 8 + 7y - 5 + 4y - 5 =

= 10y + 7y + 7y + 4y - 4 + 8 - 5 - 5 = <u>2</u><u>8</u><u>y</u><u> </u><u>-</u><u> </u><u>6</u>

6 0
3 years ago
Read 2 more answers
What is the domain and range ?
Zanzabum

Answer: domain are the ones that go side to side or the x range is the ones that go up and down or the y

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • I know it’s kinda blurry but if you can see it plz help me
    13·1 answer
  • A typical adult has an average IQ score of 105 with a standard deviation of 20. If 20 randomly selected adults are given an IQ t
    12·1 answer
  • Please Help I will reward brainliest
    8·2 answers
  • I need help with these two
    9·1 answer
  • Which of the following equations is an example of direct variation?
    11·1 answer
  • X+3&gt;12 complete solution​
    6·1 answer
  • How do I solve these?​
    9·1 answer
  • Write (46.72 X 10 8 ) 2 in scientific notation
    13·1 answer
  • The price of a printer increased by 8% to $777.60. Find the usual price of the printer.
    8·1 answer
  • Pls help and thank you
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!