当x=2时,代数式(2p^3)(x^2)-(1/2p^2)x-20的值为140,问当x=1时,代数式(p^3)(x^3)+(1/8p^2)(x^4)-40的值是多少?

当x=2时,代数式(2p^3)(x^2)-(1/2p^2)x-20的值为140,问当x=1时,代数式(p^3)(x^3)+(1/8p^2)(x^4)-40的值是多少?
当x=2时,代数式(2p^3)(x^2)-(1/2p^2)x-20的值为140,问当x=1时,代数式(p^3)(x^3)+(1/8p^2)(x^4)-40
的值是多少?

当x=2时,代数式(2p^3)(x^2)-(1/2p^2)x-20的值为140,问当x=1时,代数式(p^3)(x^3)+(1/8p^2)(x^4)-40的值是多少?
当x=2时候,(2p^3)(x^2)-(1/2p^2)x-20=140
8p^3-p^2=160
p^3-1/8p^2=20
当x=-1时候
（p^3)(x^3)+(1/8p^2)(x^4)-40
=-p^3+1/8p^2-40
=-（p^3-1/8p^2)-40
=-20-40
=-60

当x=2时候，(2p^3)(x^2)-(1/2p^2)x-20=140
8p^3-p^2=160
p^3-1/8p^2=20
当x=-1时候
（p^3)(x^3)+(1/8p^2)(x^4)-40
=-p^3+1/8p^2-40
=-（p^3-1/8p^2)-40
=-20-40
=-60

当x=2时候，(2p^3)(x^2)-(1/2p^2)x-20=140
8p^3-p^2=160
p^3-1/8p^2=20
当x=-1时候
（p^3)(x^3)+(1/8p^2)(x^4)-40
=-p^3+1/8p^2-40
=-（p^3-1/8p^2)-40
=-20-40
=-60

当x=2时候，(2p^3)(x^2)-(1/2p^2)x-20=140
8p^3-p^2=160
p^3-1/8p^2=20
当x=-1时候
（p^3)(x^3)+(1/8p^2)(x^4)-40
=-p^3+1/8p^2-40
=-（p^3-1/8p^2)-40
=-20-40
=-60