limx→0(tan(x)−xsen(2x)−2x)\lim_{x\to0}\left(\frac{tan\left(x\right)-x}{sen\left(2x\right)-2x}\right)x→0lim(sen(2x)−2xtan(x)−x)
−5t2 + 7 + 11t2 + 9t − 4-5t^2\:+\:7\:+\:11t^2\:+\:9t\:-\:4−5t2+7+11t2+9t−4
x2−x−156x^2-x-156x2−x−156
2m+3n−4m+5n2m+3n-4m+5n2m+3n−4m+5n
(23)−25−16(−2)−10\left(23\right)-25-16\left(-2\right)-10(23)−25−16(−2)−10
(4−3x)2\left(4-3x\right)^2(4−3x)2
+4+3−a−b−a+−b−a+b+4+3-a-b-a+-b-a+b+4+3−a−b−a+−b−a+b
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