(p-q)^4÷(q-p)^3 · (p-q)²(-3a)^3-(-a) · (-3a)^24-(-2)^-2-3²÷(3.14-π)^0(-1/3)^-2+(1/9)^0+(-5)^3÷(-5)²(-10)^3×(2×10^-5)^0-(1/10)^-2×10×2x^m · (x^n)^3÷(x^m-1 · 2x^n-1)(b-a)(b-a)^3(a-

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