运用幂的运算性质进行简便运算1.2^5x8^4x16^22.(-9)^3x(-2/3)^3x(1/3)^33.[(1/2)^2]^3x(2^3)^24.0.25^2013x4^2014x-8^100x0.5^3005.先化简,后求值:(-3a^2b)^3-8(a^2)^2x(-b)^2x(-a^2b)其中a=1 b=-1
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运用幂的运算性质进行简便运算1.2^5x8^4x16^22.(-9)^3x(-2/3)^3x(1/3)^33.[(1/2)^2]^3x(2^3)^24.0.25^2013x4^2014x-8^100x0.5^3005.先化简,后求值:(-3a^2b)^3-8(a^2)^2x(-b)^2x(-a^2b)其中a=1 b=-1
运用幂的运算性质进行简便运算
1.2^5x8^4x16^2
2.(-9)^3x(-2/3)^3x(1/3)^3
3.[(1/2)^2]^3x(2^3)^2
4.0.25^2013x4^2014x-8^100x0.5^300
5.先化简,后求值:(-3a^2b)^3-8(a^2)^2x(-b)^2x(-a^2b)
其中a=1 b=-1
运用幂的运算性质进行简便运算1.2^5x8^4x16^22.(-9)^3x(-2/3)^3x(1/3)^33.[(1/2)^2]^3x(2^3)^24.0.25^2013x4^2014x-8^100x0.5^3005.先化简,后求值:(-3a^2b)^3-8(a^2)^2x(-b)^2x(-a^2b)其中a=1 b=-1
1.2^5x8^4x16^2
=2^5x2^12x2^8
=2^25
2.(-9)^3x(-2/3)^3x(1/3)^3
=3³x3³x(-2/3)^3x(1/3)^3
=(-2/3x3)³x(3x1/3)³
=-8
3.[(1/2)^2]^3x(2^3)^2
=(1/2)^6x2^6
=(1/2x2)^6
=1
4.0.25^2013x4^2014-8^100x0.5^300
=(0.25x4)^2013x4-(2x0.5)^300
=4-1
=3
5.先化简,后求值:(-3a^2b)^3-8(a^2)^2x(-b)^2x(-a^2b)
原式=-27a^6b³+8a^6b³
=-19a^6b³
=-19x1x(-1)
=19