3(a+2b)−(b+2a)3\left(a+2b\right)-\left(b+2a\right)3(a+2b)−(b+2a)
(1−tan2a)1−cot2a\frac{\left(1-tan^2a\right)}{1-cot^2a}1−cot2a(1−tan2a)
x3+4x2−x−4x+4\frac{x^3+4x^2-x-4}{x+4}x+4x3+4x2−x−4
ddx4x3+5x2+8x\frac{d}{dx}4x^3+5x^2+8xdxd4x3+5x2+8x
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+26+25+27+28+29+30+31+32+33+34+35+361+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+26+25+27+28+29+30+31+32+33+34+35+361+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+26+25+27+28+29+30+31+32+33+34+35+36
(3m−7)(3m+20)\left(3m-7\right)\left(3m+20\right)(3m−7)(3m+20)
(m+2)(m−1)\left(m+2\right)\left(m-1\right)(m+2)(m−1)
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