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This warm-up exercise focuses on factoring various trinomials. You will work on four problems involving quadratic expressions and discover their factored forms. The problems include simple quadratic equations such as x² + 9x + 20 and y² - 5y - 6, challenging your skills in identifying factors. The session concludes with answers, including the identification of a prime polynomial. Try solving these trinomials and check your answers to improve your factoring abilities.
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Warm-up: Factor each trinomial. • 1. x2 + 9x + 20 • 2. y2 - 5y - 6 • 3. a2 + 7a - 5 • 4. x2y2 - 7xy - 30
Answers • 1. (x+5)(x+4) • 2. (y-6)(y+1) • 3. prime • 4. (xy-10)(xy+3)