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Sagot :
Answer:
A
Step-by-step explanation:
f(x) = x² + 12x + 36 ← is a perfect square, that is
f(x) = (x + 6)²
To find the zeros let f(x) = 0 , that is
(x + 6)² = 0 , then
x + 6 = 0
x = - 6 → A
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