Step-by-step explanation:
![12 {x}^{2} + 9 = - 6x](https://tex.z-dn.net/?f=12%20%7Bx%7D%5E%7B2%7D%20%20%2B%209%20%3D%20%20-%206x)
![12 {x}^{2} + 6x + 9](https://tex.z-dn.net/?f=12%20%7Bx%7D%5E%7B2%7D%20%20%2B%206x%20%2B%209)
Find the discrimant of the function.
![{b {}^{2} - 4ac }](https://tex.z-dn.net/?f=%7Bb%20%7B%7D%5E%7B2%7D%20-%204ac%20%7D%20)
![{6}^{2} - 4(12)(9)](https://tex.z-dn.net/?f=%20%7B6%7D%5E%7B2%7D%20%20-%204%2812%29%289%29)
![36 - 432 = - 396](https://tex.z-dn.net/?f=36%20-%20432%20%3D%20%20-%20396)
Since -396 is less than 0, there is no real roots. There is only complex roots.
Answer:
The numbers are 6 and 14
Step-by-step explanation:
Let the two numbers be x and y
x-y = 8
x+y = 20
Add the two equations
x-y = 8
x+y = 20
-----------------
2x = 28
Divide by 2
2x/2 = 28/2
x = 14
Subtract the two equations
x-y = 8
-x-y = -20
-----------------
-2y = -12
Divide by -2
-2y/-2 = -12/-2
y = 6
The numbers are 6 and 14
Answer:
B. ) -2
Step-by-step explanation:
-15 ( x - 2 ) = 25
-15X + 30 = 25
-15X = 25 - 30 15 × 2 = 30
-15X = -5
X = -5 / -15
X = 1 / 3
3400 is 10 times greater than 340 because if you divide 3400 by 10, you will get 340. Letting you know that 3400 is 10(ten) times greater than 340.
2 1/3 now everyone has the same amount