$2w^2+2w-4=0$

$sin\left(\frac{17}{20}\right)^2+cos\left(x\right)^2=1$

$-4\left(4\right)\:\left(-1\right)+2\left(-2\right)\left(-1\right)^2\:+3$

$8x^2\:-\:2x\:-\:3\:=\:0$

$\frac{1}{2}a+\frac{1}{3}a+\frac{1}{11}a+ba+\frac{1}{2}a$

$25x^2+100x+10$

$3\left(-2\right)-2\left\{5\left[\left(3-5\right)\left(-2\right)-3\right]\:\right\}$