$\int4x^7\left(x^4+1\right)dx$
$sen^2\left(x\right)+cos^2\left(x\right)-1$
$50+70+80+-800$
$169x^2-130x+x$
$sin\left(\sqrt[2]{25\cdot x-x^2}\right)=0$
$\left(2b-a\right)\left(x-2y\right)$
$\left(\frac{1}{4}a+\frac{7}{5}\right)^2$
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