Find the roots of the quadratic equations given in Q.1 above by applying the quadratic formula.
i) 2x2 – 7x + 3 = 0
According to the quadratic formula; 
= 
∴ The roots are = 
= 
= 
∴ The roots are 3 and 
ii) 2x2 + x – 4 = 0
According to the quadratic formula; 
= 
∴ The roots are = 
= 
= 
∴ The roots are = 
iii) 4x2 + 4√3x + 3 = 0
According to the quadratic formula; 
= 
∴ The roots are = 
= 
∴ The roots are 
iv) 2x2 + x + 4 = 0
According to the quadratic formula; 
= 
∴ The roots are = 
= 
This is not possible, Hence the roots do not exists.
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