Advertisements
Advertisements
प्रश्न
Factorise:
84 – 2r – 2r2
बेरीज
Advertisements
उत्तर
84 – 2r – 2r2 = –2(r2 + r – 42)
= –2(r2 + 7r – 6r – 42)
= –2[r(r + 7) – 6(r + 7)]
= –2(r – 6)(r + 7)
= 2(6 – r)(r + 7)
shaalaa.com
Factorisation of Polynomials
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Polynomials - Exercise 2.3 [पृष्ठ २१]
APPEARS IN
संबंधित प्रश्न
Determine the following polynomial has (x + 1) a factor:
x3 + x2 + x + 1
Factorise:
2x2 + 7x + 3
Factorise:
3x2 – x – 4
Factorise:
2y3 + y2 – 2y – 1
Determine the following polynomial has (x + 1) a factor:
x4 + x3 + x2 + x + 1
If x + 1 is a factor of the polynomial 2x2 + kx, then the value of k is ______.
Find the value of m so that 2x – 1 be a factor of 8x4 + 4x3 – 16x2 + 10x + m.
Factorise the following:
9x2 – 12x + 3
Factorise:
a3 – 8b3 – 64c3 – 24abc
Factorise:
`2sqrt(2)a^3 + 8b^3 - 27c^3 + 18sqrt(2)abc`
