Question

( x - 7b ) ( x - 7b )​

Answer 1

$\huge\tt\colorbox{yellow}{ANSWER}$

$(x - 7b)(x - 7b)$

$= (x - 7b {)}^{2}$

$= {x}^{2} + (7b {)}^{2} - 2(x)(7b)$

$= {x}^{2} + 49 \: {b}^{2} - 14xb$

Answer 2

Answer:

Here it is

Step-by-step explanation:

(x-7b) (x-7b)

(x-7b)²

using (a-b)² = a²+ b² - 2ab

x² + 49b² -2 × X × 7b

x² + 49b² -14xb

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