1.

Solve each of the following equations by using the formula : (i) 5x^(2)-2x-3=0 (ii) x^(2)=18x-77

Answer»


ANSWER :(i) `1` or `-(3)/(5)`
(ii) `11` or `7` ,
(iii) `-(2sqrt(3))/(3)`, or `-3sqrt(3)`


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