Fully factorise 40-2b^2

The fully factorized expression is , after factoring out the common factor and recognizing the difference of squares. To fully factorize , follow these steps: Step 1: Look for a common factor, if any. In this case, there's a common factor of 2. Step 2: Factor out the common factor of 2: Step 3: Recognize that is a difference of squares. It can be factored as Step 4: Since , its square root simplifies to . Step 5: So, the fully factorized expression is: In summary, the fully factorized expression for .