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Answer:
[tex] \sf 15x - 36[/tex]
Step-by-step explanation:
To expand the following polynomial, apply the rule of distributive property. In this rule, multiply the outside component inside the parentheses then, sum up the result products.
[tex] \sf 3(5x - 12)[/tex]
[tex] \sf [3 · 5x + 3 \:(- 12)][/tex]
[tex] \sf 15x - 36[/tex]
[tex]\therefore [/tex] The expanded form of the given polynomial is 15x - 36.