Answer:
Given the equation:
[tex]98-x^2 = 0[/tex]
Subtract 98 from both sides we have;
[tex]-x^2 = -98[/tex]
Multiply both sides by -1 we get;
[tex]x^2 = 98[/tex]
Taking square root both sides we have;
[tex]x = \pm \sqrt{98}= \pm \sqrt{49 \cdot 2}[/tex]
Simplify:
[tex]x = \pm 7\sqrt{2}[/tex]
Therefore, the solutions of the quadratic equation are:
[tex]x = 7\sqrt{2}[/tex] and [tex]x =-7\sqrt{2}[/tex]
