(134)−4\left(\frac{1}{3^4}\right)^{-4}(341)−4
2x(x−2)=(x−3)(x+2)2x\left(x-2\right)=\left(x-3\right)\left(x+2\right)2x(x−2)=(x−3)(x+2)
12xm+1(xm−1)\frac{1}{2}x^{m+1}\left(x^{m-1}\right)21xm+1(xm−1)
x2−1≤ 4x^2-1\le\:4x2−1≤4
x(x−5)3x\left(x-5\right)^3x(x−5)3
tan(2x)+13tan3(2x)\tan\left(2x\right)+\frac{1}{3}\tan^3\left(2x\right)tan(2x)+31tan3(2x)
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