Factorise 84-2n-2n sq
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Posted by Vivek Singh 3 years, 9 months ago
- 1 answers
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Yogita Ingle 3 years, 9 months 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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