Question

FAN OR MEDAL
Estimate the roots of the equation by graphing. Round to the nearest tenth and write in set form, such as {-1.2,3.4}.
x2 - 6= 0

Answer 1

so, graph it :)

Answer 2

the "roots" are the spots where the function "touches" the x-axis
so the roots are at x = {-5, 1, 3} or (x+5)(x-1)(x-3)