$\left(x-3\right)^2=4\left(x-5\right)$

$-\left\{-\left[-\left(a+b\right)\right]\right\}-\left\{+\left[-\left(-b-a\right)\right]\right\}-\left(a+b\right)$

$\int\frac{x^4+3x^2+1}{x\left(x^4+5x^2+5\right)}dx$

$\left(x-10\right)^3x^2$

$w=x^2+y^2$

$8+9\left(2y+10\right)$

$ln\left(y\right)\frac{dy}{dx}=x$