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1) (7.01, 7.02, & 7.03) Choose a trinomial to factor. Show ALL work: 3x2 − 15x + 18 10a2 + 5a − 30 4n2 − 10n − 24

2) (7.05) Using the function from question #1, determine the zeros & the y-intercept of the function. Show ALL work, then GRAPH.



3) (7.03) Determine the missing term from the perfect square trinomial. Show ALL work.
x2 − ______+ 36







Write in factored form: ( )2



4) (7.04) Determine the expression that shows a difference of perfect squares and factor it, showing ALL work.
16x2 − 81
14x2− 49
9x2 + 100

Respuesta :

amna04352

Answer:

1) 3x² - 15x + 18

2) y-intercept: 18

Zeros: 2 and 3

3) 12x ; (x - 6)²

4) 16x² - 81; (4x - 9)(4x + 9)

Step-by-step explanation:

3x² - 15x + 18

3(x² - 5x + 6)

3[x² - 2x - 3x + 6]

3[x(x - 2) - 3(x - 2)]

3(x - 2)(x - 3)

x - 2 = 0

x = 2

x - 3 = 0

x = 3

Zeros: 2 and 3

y-intercept: at x = 0

3(0-2)(0-3) = 18

x² - 2(x)(b) + 6²

b = 6

2x(6) = 12x

(x - 6)²

16x² - 81

(4x)² - 9²

(4x - 9)(4x + 9)

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