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Shibam Ghosh from Patha-Bhavana , Bolpur
Subject :IMO    Class : Class 8

What must be subtracted from x4 + 2x2 - 3x + 7 to get x3 + x2 + x - 1 ?

A x4 - x3 + x2 - 4x + 8
B x3 + x2 - 4x + 8
C x4 - x3 + x2 + 4x - 8
D x4 - x3 - x2 + 4x - 8


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