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Question

Question 2 (i)
Find the roots of the quadratic equations given in Q.1 above by applying the quadratic formula.

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Solution

(i)2x27x+3=0
On comparing this equation with ax2+bx+c=0, we get
a = 2, b = -7 and c = 3
By using quadratic formula, we get,
x=b±b24ac2a
x=7±724×2×32×2
x=7±254
x=7±54
x=7+54 or x=754
x=124 or 24
x=3 or 12

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