(1) -(-2x^3)^2·2x^2+(-3x^4)2(2) -1/2(-2xyz^2)^3
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(1) -(-2x^3)^2·2x^2+(-3x^4)2(2) -1/2(-2xyz^2)^3
(1) -(-2x^3)^2·2x^2+(-3x^4)2
(2) -1/2(-2xyz^2)^3
(1) -(-2x^3)^2·2x^2+(-3x^4)2(2) -1/2(-2xyz^2)^3
(1) -(-2x^3)^2·2x^2+(-3x^4)^2
=-8x^8+9x^8
=x^8
(2) -1/2(-2xyz^2)^3
=-1/2*(-8x^3y^3z^6)
=4x^3y^3z^6
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