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Question

Question 1 (vi)

Find the roots of the quadratic equations by using the quadratic formula in the following question.


x235x+10=0


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Solution

Given equation is x235x+10=0
on comparing with ax2 + bx c = 0 we have
a = 1, b = - 35 and c = 10
by quadratic formula, x=b±b24ac2a
=(35)±9(5)4(1)(102(1)
=35±45402=35±55
=35+52, 3552=25,5
So, 25 and 5 are the roots of the given equation


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