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Vijendra Kumar Gupta

Electronics engineer from NIT, JAIPUR. mathematics lover and love to share knowledge.

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Aaryan Parmar

2 years ago

sir start making from January please

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Atul bansal

a year ago

Good explanation

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Neelam Jain

a year ago

bhut accha h

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4a QUADRATIC EQUATION By Vijendra Kumar Gupta

Topics covered Introduction of Quadratic Equation Relationship B/W zeros & coefficient Solving a quadratic equation By factorization By completing the square Bt quadratic formula or Sridharacharya formula e Nature of roots Previous year problems

Sclution of fa cto isation completing tau S7u e eM mula

2 2. 2

Solve for x : 9x+2-6 x 3x+1+1- 0 We have 9x42-6 3x+1+1=0 Let 3*-y, then equation (i) becomes 81%-9y-9y + 1-0 (By _ 1 ) (By-1)=0 ory- 9 Putting y 3* in (ii), we get 3x 3-2 x =-2 and-2 9

Find the value of /2+12+\2+ Find the value of y2+\2+. Let x =12+ 2+12+ x=-/2 + x by squaring on both sides ,00 X-1, 2

Complet 2 3 6 2 25 2 3 6

[ii) quadratic formula