Answer:
[tex]+/-7\sqrt{2} =x[/tex]
Step-by-step explanation:
To solve the quadratic equation, move x^2 using inverse operations then take the square root of both sides.
[tex]98-x^2=0\\98-x^2+x^2=0+x^2\\98=x^2\\\sqrt{98}=\sqrt{x^2} \\\sqrt{2*49}=x \\7\sqrt{2} =x[/tex]