Solve each equation by taking square roots. 81m^2-3=46
81m^2 - 3 = 46 add 3 to both sides
81m^2 = 49 divide both sides by 81
m^2 = 49 / 81 take the square root of both sides....remember...we have to take both roots !!!!
m = ± ( 7 / 9 )