[Solved] Solve the equation \(x^{2}+4=9 x\) by completing the square. Show all steps. Commercial Paper: Commercial paper is a short-term, unsecured promissory note issued by corporations, typically used for the financing of accounts receivable, inventories, and meeting short-term liabilities. Discount Period: The time frame during which a seller offers a buyer a reduction from the normal cost of a good or service, often to incentivize prompt payment. Cash Sales: Cash sales refer to transactions where payment is made in full with cash at the time of the sale, without any credit. Cheque Processing Time: The period it takes from when a cheque is issued until the funds are available in the payee’s account, reflecting bank processing durations.