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
qaws [65]
2 years ago
11

The difference of the square of a number and 4 is equal to 3 times that number. Find the positive solution.

Mathematics
2 answers:
liberstina [14]2 years ago
8 0

Let the number be 'a':

The difference of the square of a number and 4

a^2 -4

is equal to 3 times that number.

= 3*a

a^2 -4 =3a

a^2 -3a -4=0

(a-4) (a+1)=0

solutions are: 4 and -1

aleksandr82 [10.1K]2 years ago
3 0

Step-by-step explanation:

1-4 just did this\

:D

You might be interested in
What is the factorization of 3x2 – 8x + 5?
Tanzania [10]

Answer:

(x-1)(3x-5)

Step-by-step explanation:

Factorize means convert and expression into multiple factors.

You have to find to factor that multiplied equals the original equation. Firts of all you split the expression of  square X into 3X an X, so you  guarantee that when you multiply 3X by X, the result is 3X^2.

After doing that, you need to think in numbers that equals the middle term (8X) and the constant (5).

-1 and -5 guarantee you that the multiplication of them results into +5, so you start with those numbers. Then you have to find where to put them in order to find the -8X.

-5 x X = -5X

-1 x 3X = -3X

And adding those two expresion you find the -8X that you need!

Please try to solve it multiplying term by term and check the final equation.

7 0
3 years ago
Can you help me with try these B?
Softa [21]
A. expanded, you get XxXxXxXxXxXxXxX over XxXxXxXxX
 b.XxXxX or X³
c. I would just cancel out the 5 Xs on the top line against the 5 Xs on the bottom, leaving X³.
6 0
3 years ago
The table compares x, the number of minutes of television Sam watched each day, to y, the number of minutes she spent exercising
Olegator [25]
The answer is 83minutes hope that helped
6 0
3 years ago
Read 2 more answers
Subtract 7x-9 from2x^2-11
strojnjashka [21]

Answer:

The answer is: 2x^2-7x-2

Step-by-step explanation:

we are asked to subtract 7x-9 from 2x^2-11

so, 2x^2-11-(7x-9)\\=2x^2-11-7x+9\\=2x^2-7x-2.

Hence the desired result is:  2x^2-7x-2.


8 0
3 years ago
Read 2 more answers
7 divided by 2114 it is really hard
Ronch [10]

Answer:

.00331125

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Kim S age is twice that of her sister when you add Kim's age to her sisters age of 36 how old is each sister right in equation t
    12·1 answer
  • The sum is greater than 8
    8·1 answer
  • Which graph represents y=x-2
    6·2 answers
  • HELP PLS!!! 50PTS!!! An explanation is welcome!
    12·2 answers
  • 761.8 x 10^-8 Express the number in scientific notation. A) 7.618 x 10^-6 B) 7.618 x 10^-8 C) 7.618 x 10^2 D) 7.618 x 10^6
    6·1 answer
  • Dived and lowest form <br> 2/ 1/4/13
    10·1 answer
  • Find the value of x. <br> 65°<br> (x + 12°)
    12·1 answer
  • Then solve the equation.
    7·1 answer
  • Mrs. Patterson but a set of building blocks for her son each cube shaped block measured 4 cm on one side what is the volume of s
    15·1 answer
  • Please help me simplify this answer.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!