$\left(p-2q+r\right)^2$

$\int\left(e^3-3^e\right)e^xdx$

$\frac{x^2}{2}+2$

$\lim_{x\to\infty}x^{ln\left(\frac{\left(x+1\right)}{x}\right)}$

$\sqrt{192}$

$sin\left(a\right)sin\left(b\right)cos\left(c\right)cos\left(d\right)+sin\left(a\right)sin\left(b\right)sin\left(c\right)sin\left(d\right)+cos\left(a\right)cos\left(b\right)$

$x^4-6x^2+-6x^2+6x^2$