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Answer:

Step-by-step explanation:

21d(10d+3(

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The expression which is equivalent to 210d² − 63d is; 21d(10d- 3).

Factorization of Expressions

From the given expression;

  • 210d² − 63d

A factor which is common to both terms of the expression is; 21d.

On this note, the factorisation of the expression yields;

  • 21d(10d- 3).

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