Solving equations with technology

Quadratic formula evaluated with technology

[Maximum mark: 4]The quadratic formula is given by$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$For the values $a=1.6$, $b=-3.2$ and $c=-2.88$(a) Calculate the value of $x$. Write down only the positive value of $x$. Write down your full calculator display.[2](b) Give your answer to part (a) correct to(i) three decimal places.(ii) three significant figures[2]