(-2ab^2)^3+8(-a)^3*(-b^2)*(b^2)^2=?
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(-2ab^2)^3+8(-a)^3*(-b^2)*(b^2)^2=?
(-2ab^2)^3+8(-a)^3*(-b^2)*(b^2)^2=?
(-2ab^2)^3+8(-a)^3*(-b^2)*(b^2)^2=?
(-2ab^2)^3+8(-a)^3*(-b^2)*(b^2)^2
=(-2)^3*a^3*b^6+8*(-a^3)*(-b^2)*b^4
=-8a^3b^6+8a^3b^6
=0
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