1. The user requests answers with little working shown. 2. To provide concise answers, we will give the final solution with minimal intermediate steps. 3. However, it is important to include at least a brief explanation or key formula to ensure understanding. 4. For example, if solving $x^2 - 4 = 0$, we can write: - Use the difference of squares formula: $a^2 - b^2 = (a-b)(a+b)$. - Factor: $x^2 - 4 = (x-2)(x+2) = 0$. - Solutions: $x=2$ or $x=-2$. 5. This approach balances brevity with clarity. Final answer: Provide concise solutions with minimal but clear working steps.