$1.8-\left(-3.7\right)$

$x^5+4x^4-12x^3-34x^2+11x+30$

$\sqrt{\left(\log_{4}3x\right)}$

$\left(-17\right)+8+\left(-12\right)-\left\{\left(-16\right)+\left(-16\right)\right\}$

$\int\left(\frac{2}{3}x^4\ln\left(x\right)\right)dx$

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

$\int\:x^3cos\left(2x^4\right)dx$