Visual QA is done at this stage?
1. Discover stage
2. Develop stage
3. Design stage
4. None of these
The correct option is 4. None of these
Visualizing of (x+a)(x+b) can be done using a straight line
Visualization of subtraction of polynomials can be done only if the polynomials are constants
Visualization of subtraction of polynomials can be done only by using 3-dimensional shapes.