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24 vote

The L.C.M. of (2x2 - 3x - 2) and (x3 - 4x2 + 4x) is ________

Asked on by | Votes 24 | Views: 902 | Tags: algebra     | quantitative aptitude     | Add Bounty

The L.C.M. of (2x2 - 3x - 2) and (x3 - 4x2 + 4x) is ________


1). x(2x2 + 1)(x2 + 2)
2). x(2x + 1)(x - 2)2
3). x(2x2 + 1)(x - 1)2
4). x(2x + 1)(x2 - 1)


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1 answers

31 vote
Answered by on | Votes 31 |

2x2 - 3x - 2 = 2x2 - 4x + x - 2

2x(x - 2) + 1(x - 2)

(x - 2)(2x + 1)

x3 - 4x2 + 4x = x(x2 - 4x + 4)

x(x - 2)2

LCM = x(x - 2)2(2x + 1)

Accepted Answer

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