Question

(7x+6y) (7x+6y) (7x+6y)
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Answer 1

Step-by-step explanation:

(7x+6y)(7x+6y)(7x+6y)

= (7x +6y)³

= (7x)³ + (6y)³+ 3(7x)² .6y +3(6y)².7x

= 343x³ + 216y³ + 882x² y + 756y²x

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Answer 2

$= (7x + 6y)(7x + 6y)(7x + 6y) \\ \\ = \: in \: the \: place \: of \: (y) \: we \: can \: take \: (x) \\ \\ soo \: \: now \\ \\ = (7x + 6x)(7x + 6x)(7x + 6x) \\ \\ = 13x + 13x + 13x \\ = 26x + 13x \\ \\ = 2x \\ \\ 39 + 2x \\ \\ = \ 41x \: answer \:$