$$x^2-8x+16x^2-2$$

$$\frac{1+2sin\left(x\right)cos\left(x\right)}{sin\left(x\right)}+cos\left(x\right)=sin\left(x\right)+cos\left(x\right)$$

$$\:45.27-1.27$$

$$x-8=\left(-a-b\right)x+\left(2a+3b\right)$$

$$3y^3\left(m-n\right)+4z^2\left(m-n\right)$$

$$\int_{-1}^1\left(x^2.e^x\right)dx$$

$$\int\frac{1}{\left(u-1\right)^2}du$$