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?
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![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?](/uploads/image/z/10771480-64-0.jpg?t=%E5%BD%93x%3D2%E6%97%B6%2C%E4%BB%A3%E6%95%B0%E5%BC%8F%282p%5E3%29%28x%5E2%29-%281%2F2p%5E2%29x-20%E7%9A%84%E5%80%BC%E4%B8%BA140%2C%E9%97%AE%E5%BD%93x%3D1%E6%97%B6%2C%E4%BB%A3%E6%95%B0%E5%BC%8F%28p%5E3%29%28x%5E3%29%2B%281%2F8p%5E2%29%28x%5E4%29-40%E7%9A%84%E5%80%BC%E6%98%AF%E5%A4%9A%E5%B0%91%3F)
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