(4x4 - 5x3 - 7x + 1) = (4x - 1)
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Answer:
LHS
4x-5x-7x = - 12x +4x = - 8x
( -8X4×3+1)
(-8X+13) = (4X - 1 )
-8 X -4X = -1 -13
-12X = -14
X = -14/-12
= 7/6
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