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Pranay SB

· started a discussion

· 1 Months ago

Not ' Yet to be approved': :-D (Question: 112007.0 )

Given answer is correct. Learn LCM first.

Question:
The LCM of x2 - 10x + 16, x2 - 9x + 14 and x2 - 10x +21 is:
Options:
A) (x-2)2 (x-3) (x-7)2 (x-8)
B) (x-2)2 (x-3) (x-7) (x-8)
C) (x-2) (x-3) (x-7)2 (x-8)
D) (x-2) (x-3 (x-7) (x-8)
Solution:

Ans: (d) 

x2 - 10x + 16 = (x - 8) (x - 2)

x2 - 9x + 14 = (x - 7) (x - 2)

x2 - 10x + 21 = (x - 7) (x - 3)

Hence, their LCM = (x - 2) (x - 7) (x - 3) (x - 8)

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