The answer is
![3 {x}^{2} - 19x - 14](https://tex.z-dn.net/?f=3%20%7Bx%7D%5E%7B2%7D%20%20-%2019x%20-%2014)
first you must multiply or use the FOIL method (First, Outer, Inner, Last)
First you multiply the first terms
![(3x)(x)](https://tex.z-dn.net/?f=%283x%29%28x%29)
this gives you 3x^2, then you multiple the outer terms
![( - 7)(3x)](https://tex.z-dn.net/?f=%20%28%20-%207%29%283x%29)
this gives you -21x, then you multiply the inner terms
![(2)(x)](https://tex.z-dn.net/?f=%282%29%28x%29)
that gives you 2x, finally you multiply the last terms
![(2)( - 7)](https://tex.z-dn.net/?f=%282%29%28%20-%207%29)
that gives you 14, now you combine like terms
![- 21x + 2x = - 19x](https://tex.z-dn.net/?f=%20-%2021x%20%2B%202x%20%3D%20%20-%2019x)
now you put all the terms together and end up with your solution
Answer:
The expression for two times the difference of eight and d. is
![2(8-d)](https://tex.z-dn.net/?f=2%288-d%29)
Step-by-step explanation:
To Find:
Write an expression for two times the difference of eight and d.
Solution:
Difference of 8 and d = ( 8 - d )
So One Time Difference of 8 and d = 1× ( 8 - d )
∴ Two Times Difference of 8 and d = 2× ( 8 - d )
The expression for two times the difference of eight and d. is
![2(8-d)](https://tex.z-dn.net/?f=2%288-d%29)
Answer: F
Step-by-step explanation:
- This does not have infinitely many solutions (adding the equations, we get a fixed value of x)
- This has no solutions (the left hand sides are the same but the right hand sides have different values)
- This has one solution (the first equation givess a fixed value for x)
- This has no solutions (same reason as 2)
- This has one solution (same reason as 3, just the second equation instead of the first)
- This has infinitely many solutions (multiplying both sides of the top equation by -2 gives the bottom equation).
Answer:
-31
Step-by-step explanation:
-2((c+5)/(-2))=13*-2
c+5=-26
c=-31
Answer:
140/40
Step-by-step explanation:
2*60= 120
120+20= 140
140/40