Answer:
this is so easy and the answer of this all questions is54
Value of x is 9
As when we multiply a + 3 by -2a2 + 15a + 6
We get
(a + 3) (-2a2 + 15a + 6)
-2a3 + 15a2 + 6a - 6a2 + 45a + 18
-2a3 + 9a2 + 51a + 18
If we compare the coefficients of a2, we get
x = 9
The answer to whether an equation can be true or false is; Yes
<h3>Equations</h3>
Yes an equation can be true or false. This is because for example if we have the equation;
3x + 5 < 12
For this equation to hold true, only certain values of x can be possible which we will call as possible solutions. Whereas any values outside of the possible range of x will make the equation to be false.
Read more on equations at; brainly.com/question/2972832
The answer to this question is: The Answer
