Answer:
Explanation:
If you multiply (x - k)(x + k), you get 
which is equal to 
. Now you can see that 
must be equal to 
which is equal to 
. Now we just need to solve 
. The final answer is 
.
Science is not testable is not a characteristic of science.
The omitted options include :
- science is a process.
- science is a body of knowledge.
- science must follow the scientific method.
- science is not testable.
<h3>What is a Scientific method? </h3>
A scientific method refers to the step by step process that scientists must follow in order to give scientific explanation of a phenomena or invention of an idea that is testable.
The scientific method includes:
- Observation
- Constructing a hypothesis/ testable explanation
- Conducting experiments to test the hpothesis
- Formulation of theories based on experiments
- Conducting further experiments and research
- Making conclusions/Formulation of laws.
- Reporting, and evaluating.
Thus, the characteristics of science include:
- science is a process.
- science is a body of knowledge.
- science must follow the scientific method.
Therefore it is wrong to say that science is not testable.
Read more on scientific methods here: brainly.com/question/26174465
