Question

先化简,在求值:2(-a^2bc)^2*1/2ab^3c^3-(-abc)^3*(-abc)^2 a=-5,b=0.2,

Answer 1

先化简,在求值:2(-a^2bc)^2*1/2ab^3c^3-(-abc)^3*(-abc)^2=(2a^4b^2c^2*)*(1/2ab^3c^3)+a^3b^3c^3*a^2b^2c^2=a^5b^5c^5+a^5b^5c^5=2(abc)^5a=-5,b=0.2,c=1原式=2*【(-5)*0.2*1】^5=-2