$5a^2+2bc+3d=10$

$-\frac{300}{3}$

$\int\left(x\left(3-8x^2\right)^3\right)dx$

$1+\left(\sin\left(x\right)-\cos\left(x\right)\right)\left(\sin\left(x\right)+\cos\left(x\right)\right)=1-\cos\left(2x\right)$

$25^2x-20x+16$

$2^{5\cdot2}$

$30+15\left(0.465\right)-16.1\left(0.465\right)^2$