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2t2-98 = 0
2t2 = 98
Divide both sides by 2 and then square root both sides:-
t = 7
2t^2 - 98 = 0 add 98 to each side 2t^2 = 98 divide both sides by 2 t^2 = 49 take square root of both sides t = +/- sqrt(49) t = +/- 7 you should see that this checks
96
7n = 98Divide each side by 7:n = 14
0+98
It is 98 because 98*98 = 9604