FACTORISRE
(c) y2 – 4y - 12
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Answer:
y^2 - 4y -12
y^2 - 6y + 2y - 12
y(y - 6) + 2(y -6)
(y - 6) (y + 2)
y - 6 = 0. or. y + 2 = 0
y = 6. or y = -2
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