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Find the roots of equation 5xsquare-6x-2 by completing the square method |
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Answer» =(5x2-6x-2)×5=0=25x2-30x-10=0=[(5x)2]-2×[5x×3]+[(3)2]-(3)2-2=0=(5x-3)2-9-2=0=(5x-3)2=11=5x-3=+_√11=1st root=5x-3=+√11 =5x=3+√11 =x=3+√11/5=2nd root=5x-3=_√11 =5x=3-√11 =x=3-√11/5 Where 5x2 is 5x square and in step 3rd it\'s in the form of a2+b2 - 2ab Nahi aata |
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