For what values of \( a \) and \( b \), the expression \( x^{4}+ \)
(VI) \( 4 x^{3}+a x^{2}-b x+...
For what values of \( a \) and \( b \), the expression \( x^{4}+ \)
(VI) \( 4 x^{3}+a x^{2}-b x+3 \) is a multiple of \( x^{2}-1 \) ?
(a) \( a=1, b=7 \)
(b) \( a=4, b=-4 \)
(c) \( a=3, b=-5 \)
(d) \( a=-4, b=4 \)
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