Solve this radical function: \sqrt{2x+8}-x=4 Find the absolute values of the complex numbers, z_1 = -2 -i, z_2 = 3 + i. In formally proving that \lim_{x\to 3}(x^2 + x)= 12, let \varepsilon greater than 0 be arbitrary. Choose \delta= min(\frac{\varepsi...