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Sagot :
Answer:
A
Step-by-step explanation:
(3x + 5)² = (3x + 5)(3x + 5)
Each term in the second factor is multiplied by each term in the first factor , that is
3x(3x + 5) + 5(3x + 5) ← distribute parenthesis
= 9x² + 15x + 15x + 25 ← collect like terms
= 9x² + 30x + 25 → A
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