IM Illustrative Mathematics Lesson 8: Equivalent Quadratic Expressions Cool Down: Writing Equivalent Expressions 1. Use a diagram to show that (3x+1)(x+2) is equivalent to 3x² +7x+2. 2. Is (x+4)² equivalent to 2x² + 8x+8? Explain or show your reasoning. | www.is219org - Facel

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