Question

The coefficient of x in expansion of (x – 7)3 is​

Answer 1

Answer:

3(x-7)

= 3x-21

Coefficient of x is 3

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Answer 2

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Step-by-step explanation:

$(x \: - 7) |3|$

Multiply both terms by 3

$3x \: - 21$

Therefore ;

Coefficient of x is 3

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