当x=-2时,-25a-23b-2c-6=8得到25a+23b+2c+6=-8,
所以25a+23b+2c=-8-6=-14
当x=2时,ax5+bx3+cx-6=25a+23b+2c-6=(-14)-6=-20
x=-2时,代数式ax5+bx3+cx-6的值为8,求当x=2时,代数式ax5+bx3+cx-6的值.
x=-2时,代数式ax5+bx3+cx-6的值为8,求当x=2时,代数式ax5+bx3+cx-6的值.
数学人气:798 ℃时间:2020-03-27 01:17:00
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