Question

当x=1时,ax的五次方+bx的三次方+cx+1=5 则x=-1时ax的五次方+bx的三次方+cx+1=?

Answer 1

∵ 当 x = 1 时,a x ⁵ + b x ³ + c x + 1 = 5∴ a × 1 ⁵ + b × 1 ³ + c × 1 = 4a + b + c = 4∴ 当 x = - 1 时,a x ⁵ + b x ³ + c x + 1= a × （- 1）⁵ + b × （- 1）&...