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Subject :IMO    Class : Class 10

If H.C.F of (x - 5)(x2 - x - a) and (x - 4) (x2 - 2x - b) is (x - 4)(x - 5), find the values of a and b respectively.
(a) 15, 18
(b) 10, 7
(c) -8, 10
(d) 12, 15


Ans 1:

Class : Class 10
Answer is(d) 12,15

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