# [Answer] Which of the following expressions are perfect-square trinomials? Check all of the boxes that apply Understanding Monopolies

###### Answer: 4×2 +12x + 9×2 + 20x + 100 Chapter 9: Firms in a competitive market
Which of the following expressions are perfect-square trinomials? Check all of the boxes that apply Understanding Monopolies

A mathematical constant is a key number whose value is fixed by an unambiguous definition often referred to by a symbol (e.g. an alphabet letter) or by mathematicians’ names to facilitate using it across multiple mathematical problems. Constants arise in many areas of mathematics with constants such as e and π occurring in such diverse contexts as geometry number …

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The process of completing the square makes use of the algebraic identity + + = (+) which represents a well-defined algorithm that can be used to solve any quadratic equation.: 207 Starting with a quadratic equation in standard form ax 2 + bx + c = 0 Divide each side by a the coefficient of the squared term.; Subtract the constant term c/a from both sides.; Add the …

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