Roots are the reverse of powers. For example, a square root is the reverse of a square number. So \(5^2 = 25\) and \(\sqrt{25} = 5\) A cube root is the reverse of a cube number. Write 40 as a ...

right)^2 + c\) For this example, this gives ... adding and subtracting the square root to find the two solutions. \(x = -3 \pm \sqrt{19}\) The first solution is: \(x = -3 + \sqrt{19} ...