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Factorise 84-2n-2n sq

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Factorise 84-2n-2n sq

Posted by Vivek Singh 5 years ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years ago

84-2n-2n²

= 2(42-n-n²) /* Taking 2 common */

= 2( 42 - 7n + 6n - n²) /* splitting the middle term */

= 2[7(6-n)+n(6-n)]

= 2(6-n)(7+n)

Therefore,.

2, (6-n) and (7+n) are factors of given quadratic expression.

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CBSE > Class 09 > Mathematics