What is the negative x-intercept of the graph of the quadratic function f(x) = 5x2 + 4x - 1?

Need ! give step by step solutions on how to solve number one \frac{9-2\sqrt{3} }{12+\sqrt{3} } number two x+4=\sqrt{13x-20} number three (domain and range) f(x)=2\sqrt[3]{x} +1

What is the average diastolic blood pressure for adults

Which expression is equivalent to 64 - 9x^2?