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Solve the following quadratic equations for x and give your answer correct to 2 decimal places :
(i) x2 - 5x - 10 = 0
(ii) x2 + 7x = 7
Solve the following equations by using quadratic formula and give answer in correct to 2 decimal places :
(i) 4x2 - 5x - 3 = 0
(ii) x2 - 7x + 3 = 0