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Question

root(2x2+5x-2) -root(2x2+5x-9) =1,then the values of x satisfying this equation are??

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Solution

Dear Student,

2x2+5x-2-2x2+5x-9=12x2+5x-2=2x2+5x-9+1squaring both sides2x2+5x-2=2x2+5x-9+1+22x2+5x-92x2+5x-2-2x2-5x+9-1=22x2+5x-96=22x2+5x-93=2x2+5x-9squaring both sides9=2x2+5x-92x2+5x-18=0x=-5±25+1444=-5±134=-92 or 2x=-4.5 or 2

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