72x2−x−172x^2-x-172x2−x−1
(2x2y4−3x4y)2\left(2x^{2}y^{4}-3x^{4}y\right)^{2}(2x2y4−3x4y)2
(−167)−(−268)\left(-167\right)-\left(-268\right)(−167)−(−268)
1−(4−(3−7−2))1-\left(4-\left(3-7-2\right)\right)1−(4−(3−7−2))
2a2+28a+982a^2+28a+982a2+28a+98
∫2(x2+2)dx\int\frac{2}{\sqrt{\left(x^2+2\right)}}dx∫(x2+2)2dx
3x+2x−1=x+6\frac{3x+2}{x-1}=x+6x−13x+2=x+6
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