Answer:
x^2+6x+8
Step-by-step explanation:
x x x=x^2
x x2= 2x
4 x x=4x
4 x 2= 8
x^2+2x+4x+8
x^2+6x+8
Given:
The expression is

To find:
The equivalent expression.
Solution:
We have,

It can be written as

So, option C is correct.


So, option A is correct.
The given expression can be written as

So, option D is incorrect.

So, option B is incorrect.
Therefore, the correct options are A and C.
Answer:
16,125
Step-by-step explanation:
Answer:
x=7
Step-by-step explanation:
3x+9x=6x+42 add simalar elements 3x+9x=12x
12x=6x+42
12x-6x=6x+42-6x subract 6x from both sides
6x=42 simplify
6x/6=42/6 divide both by 6
x=7