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Question

Solve 2x25x+2=0 by factorisation method. Find the roots of (PS)
1x1x2=3 x0,2.

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Solution

Given,

2x25x+2=0

25x+2x2=0

2x25x+2=0

(x2)(2x1)=0

x=2,12

Given,

1x1x2=3

x2x=3(x)(x2)

2=3x26x

3x26x+2=0

x=(6)±(6)243223

=6±126

=2(3±3)6

x=3±33

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