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Part A: Factor x2c2 − 4xc2 − 21c2. Show your work. (4 points)
Part B: Factor x2 + 6x + 9. Show your work. (3 points)
Part C: Factor x2 − 9. Show your work. (3 points)

Respuesta :

texaschic101
Part A : x^2c^2 - 4xc^2 - 21c^2
             c^2(x^2 - 4x - 21)
             c^2(x - 7)(x + 3) <==

Part B : x^2 + 6x + 9
             (x + 3)(x + 3) or (x + 3)^2 <==

Part C : x^2 - 9
             (x + 3)(x - 3) <==