integrate sqrt(x) solve 3 - 7(4x - 4) = -4x + 115 coord(1,2)*coord(3,4) integrate x*e^x What is 2 plus 3 times 4? add ln(8) and ln(8) Calculate the derivative of f(x) = x^3 - 4x^2 + x - 7 differentiate tan(x)