$-y+7y$

$4\sqrt{2}\cdot5\sqrt{3}\cdot2\sqrt{5}$

$p\left(x\right)=5ax^{a+4}+3x^ay^{b-bx^{b+5}}$

$\cos\left(\infty+\frac{\pi}{2}\right)=-\sin\left(\infty\right)$

$\int_0^{\infty}\left(\frac{sin\left(x\right)}{e^x}\right)dx$

$\lim_{x\to0}\left(\frac{x^2}{\sec\left(x\right)-1}\right)$

$\ln\left(2x-2\right)=2w-2$