4+22−0.52\frac{4+2}{2}-\frac{0.5}{2}24+2−20.5
(2x − 8) . (2x + 5)\left(2x\:-\:8\right)\:.\:\left(2x\:+\:5\right)(2x−8).(2x+5)
7(x+3)−2(x−2)7\left(x+3\right)-2\left(x-2\right)7(x+3)−2(x−2)
limx→1(4x−3xx2−1)\lim_{x\to1}\left(\frac{4^x-3^x}{x^2-1}\right)x→1lim(x2−14x−3x)
−7.8+6.2-7.8+6.2−7.8+6.2
ddx(3y4 − 5x3 )\frac{d}{dx}\left(3y^4\:-\:5x^{3\:}\right)dxd(3y4−5x3)
(m2+m−1)(−m2+m+1)\left(m^2+m-1\right)\left(-m^2+m+1\right)(m2+m−1)(−m2+m+1)
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