$\left(x^2+y^2\right)dx-5xydy=0$

$f\left(x\right)=\frac{\left(1\right)}{\left(8+x\right)^2}$

$9y^2-10y+49$

$f\left(x\right)=\left(9\cdot2+8\right)^3$

$2\ln\left(x\right)+\ln\left(2\right)=\ln\left(5x+3\right)$

$150e^{-.02\left(20\right)}$

$5^2+\left(-18\right)+\left(-4+3\right)^2$