3√7 -3 √28 + √63
lim +$\infty$ x-ln(x)
find c. ab - cd = e
find c. a b - cd = e
(√(27 + 3^3) - ∛(64)) * (2^(2 + 1)) / 5
\frac{1}{x+1}+x=\frac{\left(x^{2}-x-1\right)}{x^{2}-1}\cdot\frac{2}{x-1}
7-(4-3)+11
2(x+4)=22
