Mathematics
1 - 2x - 2x2 + 4x3 is equal to:
(1 + 2x) (1 - 2x2)
(1 + 2x) (1 + 2x2)
(1 - 2x) (1 - 2x2)
(1 - 2x) (1 + 2x2)
Factorisation
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Answer
1 - 2x - 2x2 + 4x3
= 1 (1 - 2x) - (2x2 - 2 2 x2 x)
= 1 (1 - 2x) - 2x2(1 - 2x)
= (1 - 2x)(1 - 2x2)
Hence, option 3 is the correct option.
Answered By
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Related Questions
a(x - y) - b(x - y)2 is equal to:
(x - y)2 (a - b)
(x + y) (x - y) (a - b)
(x - y) (a - bx + by)
(x - y) (a - bx - by)
a2 + bc + ab + ac is equal to:
(a + b)(a + c)
(a + b)(b + c)
(a + c) (a - b)
(a - b) (b + c)
a(x - y) - b(y - x)2 is equal to:
(x - y)(a - by + bx)
(y - x)(a - bx + by)
(x - y) (a - bx - by)
(x - y) (a - bx + by)
Factorise :
17a6b8 - 34a4b6 + 51a2b4