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प्रश्न
Simplify:
p3 − (p + 1)3
सोपे रूप द्या
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उत्तर १
It is known that,
a3 − b3 = (a − b)(a2 + ab + b2)
p3 − (p + 1)3
= {p − (p + 1)} {(p)2 + (p + 1)2 + (p) × (p + 1)}
= (−1) (p2 + p2 + 1 + 2p + p2 + p)
= (−1)(3p2 + 3p + 1)
= −3p2 − 3p − 1
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उत्तर २
p3 − (p + 1)3
We know that,
(a + b)3 = a3 + 3a2b + 3ab2 + b3
= p3 − (p3 + 3p2 + 3p + 1)
= p3 − p3 − 3p2 − 3p − 1
= −3p2 − 3p − 1
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
संबंधित प्रश्न
Simplify:
\[\frac{a^2 + 10a + 21}{a^2 + 6a - 7} \times \frac{a^2 - 1}{a + 3}\]
Simplify:
`(1 - 2x + x^2)/(1 - x^3) xx (1 + x + x^2)/(1 + x)`
Factorise:
y3 − 27
Simplify:
(x + y)3 − (x − y)3
Simplify:
(3a + 5b)3 − (3a − 5b)3
Factorise: 27p3 - 125q3.
Factorise: 54p3 - 250q3.
Factorise: `a^3 - 1/(a^3)`
Simplify: (a - b)3 - (a3 - b3)
Factorise the following:
27x3 – 8y3
