4x-16x³,(-3分之1)的-2次方+(9分之1)的0次方+(-5)³÷(-5)²
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![4x-16x³,(-3分之1)的-2次方+(9分之1)的0次方+(-5)³÷(-5)²](/uploads/image/z/3753894-30-4.jpg?t=4x-16x%26%23179%3B%2C%28-3%E5%88%86%E4%B9%8B1%29%E7%9A%84-2%E6%AC%A1%E6%96%B9%2B%289%E5%88%86%E4%B9%8B1%29%E7%9A%840%E6%AC%A1%E6%96%B9%2B%28-5%29%26%23179%3B%C3%B7%28-5%29%26%23178%3B)
4x-16x³,(-3分之1)的-2次方+(9分之1)的0次方+(-5)³÷(-5)²
4x-16x³,(-3分之1)的-2次方+(9分之1)的0次方+(-5)³÷(-5)²
4x-16x³,(-3分之1)的-2次方+(9分之1)的0次方+(-5)³÷(-5)²
4x-16x³
=4x(1-4x²)
=4x(1-2x)(1+2x)
(-1/3)^-2+(1/9)^0+(-5)^3÷(-5)^2
=9+1+(-5)^1
=10-5
=5