Name:__________ warm-up 8-9 Factor x 2 – 121Factor –36x 2 + 1 Solve 4c 2 = 49 by factoringSolve 25x 3 – 9x = 0 by factoring.

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Presentation transcript:

Name:__________ warm-up 8-9 Factor x 2 – 121Factor –36x Solve 4c 2 = 49 by factoringSolve 25x 3 – 9x = 0 by factoring

Show the factors of 8m 3 – 288m

Details of the Day EQ:I will be able to… Activities: Warm-up Review homework Notes Class work/ HW Test Friday Vocabulary: perfect square trinomial.. Factor perfect square trinomials. Solve equations involving perfect squares.

8-9 Perfect Squares Slope

A Quick Review Factor x 2 – 121Factor –36x Solve 4c 2 = 49 by factoringSolve 25x 3 – 9x = 0 by factoring

A Quick Review Show the factors of 8m 3 – 288m

Notes and examples Determine whether 25x 2 – 30x + 9 is a perfect square trinomial. If so, factor it. Determine whether 49y y + 36 is a perfect square trinomial. If so, factor it.

Notes and examples Determine whether 9x 2 – 12x + 16 is a perfect square trinomial. If so, factor it. Determine whether 49x x + 4 is a perfect square trinomial. If so, factor it.

Notes and examples Factor 6x 2 – 96 Factor 16y 2 + 8y – 15. Factor the polynomial 3x 2 – 3Factor the polynomial 4x x + 6

Notes and examples Solve 4x x = –81Solve 9x 2 – 30x + 25 = 0

Notes and examples Solve (b – 7) 2 = 36Solve (x + 9) 2 = 8

Notes and examples Solve the equation (x – 4) 2 = 25. Check your solution. Solve the equation (x – 5) 2 = 15. Check your solution.

Notes and examples PHYSICAL SCIENCE A book falls from a shelf that is 5 feet above the floor. A model for the height h in feet of an object dropped from an initial height of h 0 feet is h = –16t 2 + h 0, where t is the time in seconds after the object is dropped. Use this model to determine approximately how long it took for the book to reach the ground. PHYSICAL SCIENCE An egg falls from a window that is 10 feet above the ground. A model for the height h in feet of an object dropped from an initial height of h 0 feet is h = –16t 2 + h 0, where t is the time in seconds after the object is dropped. Use this model to determine approximately how long it took for the egg to reach the ground.