Answer:
79
Step-by-step explanation:
To find the value of
, when x = 3, simply plug in the value of x in the expression and solve as follows:
![10(3)^2 – 7(3) + 10](https://tex.z-dn.net/?f=%2010%283%29%5E2%20%E2%80%93%207%283%29%20%2B%2010%20)
![10(9) – 21 + 10](https://tex.z-dn.net/?f=%2010%289%29%20%E2%80%93%2021%20%2B%2010%20)
![90 – 21 + 10](https://tex.z-dn.net/?f=%2090%20%E2%80%93%2021%20%2B%2010%20)
![79](https://tex.z-dn.net/?f=%2079%20)
The value of
, when x = 3, is 79
2, 4, 6, 8, 10, 12
difference is 2
We have the following:
![x-8=20](https://tex.z-dn.net/?f=x-8%3D20)
solving for x
![\begin{gathered} x=20+8 \\ x=28 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20x%3D20%2B8%20%5C%5C%20x%3D28%20%5Cend%7Bgathered%7D)
The solution of x is equal to 28, therefore 12 is not a solution of the equation
1/3 + 7x = 1/3 + 7(5 )=
1/3+35
=1/3 + 105/3 =
106/3=
35 1/3