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निम्न के गुणनखण्ड कीजिए।

1. \(27 p^{3}-\frac{1}{216}-\frac{9}{2} p^{2}+\frac{1}{4} p\) 

2. 49a2 + 70ab + 25b2

3. 4x2 + y2 + z2 – 4xy -2yz + 4xz

1 Answer

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Best answer

1. \((3 p)^{3}+\left(-\frac{1}{6}\right)^{3}+3(3 p)\left(-\frac{1}{6}\right)\left(3 p-\frac{1}{6}\right)\)

\(=\left(3 p-\frac{1}{6}\right)^{3}\)

2. (7a)2 + 2 × 7a × 5b + (5b)2

सूत्र [x2 + 2xy + y2 = (x + y)] से

= (7a + 5b)2

3. (2x)2 + (-y)2 + (z)2 + 2. (2x)(-y) + 2(-y) (z) + 2. (2x)(z)

= (2x – y + z)2 

= (2x – y + z)(2x – y + z)

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