$\left(3a^3b^4\right)^2$

$8.6+0.5+9-40-2.2-1.8$

$\lim_{x\to\infty}\left(\frac{\left(e^{\left(-0.1\left(x+1\right)^{0.5}\right)}\right)}{\left(e^{\left(-0.1\left(x\right)^{0.5}\right)}\right)}\right)$

$\cos\left(225\right)+3\sin\left(225\right)=-2\sin\left(45\right)$

$\int_0^2\left(e^{3x}\left(3+9x\right)\right)dx$

$4x^2+2x-7=0$

$8x^2y^3\cdot x^4y^4$