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प्रश्न
Factorise:
2x2 – 7x – 15
बेरीज
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उत्तर
2x2 – 7x – 15
= 2x2 – 10x + 3x – 15
= 2x(x – 5) + 3(x – 5) ...[By splitting term]
= (2x + 3)(x – 5)
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Factorisation of Polynomials
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Polynomials - Exercise 2.3 [पृष्ठ २१]
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संबंधित प्रश्न
Find the value of k, if x – 1 is a factor of p(x) in the following case:
p(x) = kx2 – 3x + k
Factorise:
3x2 – x – 4
Determine the following polynomial has (x + 1) a factor:
`x^3-x^2-(2+sqrt2)x+sqrt2`
Factorize the following polynomial.
(y + 2) (y – 3) (y + 8) (y + 3) + 56
Factorize the following polynomial.
(x – 3) (x – 4)2 (x – 5) – 6
One of the factors of (25x2 – 1) + (1 + 5x)2 is ______.
Factorise:
x2 + 9x + 18
Find the following product:
(2x – y + 3z)(4x2 + y2 + 9z2 + 2xy + 3yz – 6xz)
Factorise:
a3 – 8b3 – 64c3 – 24abc
If both x – 2 and `x - 1/2` are factors of px2 + 5x + r, show that p = r.
