5xx+5−2x+1\frac{5x}{x+5}-\frac{2}{x+1}x+55x−x+12
y′=2xyy'=\frac{2x}{y}y′=y2x
∫logx+1dx\int\log\sqrt{x+1}dx∫logx+1dx
3x − 2y = 0\frac{3}{x}\:-\:\frac{2}{y}\:=\:0x3−y2=0
∫2−11x2+4x+8dx\int_2^{-1}\frac{1}{x^2+4x+8}dx∫2−1x2+4x+81dx
(4kh2)4\left(4kh^2\right)^4(4kh2)4
−2x2−3x+5-2x^2-3x+5−2x2−3x+5
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