7u factorise it to get the 2 eqns.. Let the ||gm be ABCD . suppose u got the eqn of AD and CD.. Solve them get co-ordinates of D. now Diagnols r AC and BD. u knw they intersect at (3,2). Now using the property that the diagnols bisect,u can get get co-ordinate of B since u knw D.now for the other two (A,C) . Assign the co-ordinates of ur choice. So u have 4 variables. Get the 4 eqns to solve them. 1st 2 eqns , u can get by putting them in the eqn of the line (AD, or DC ) on which they lie.now u can get the other 2 eqns by using the propery that (3,2) is the midpoint of AC too.
1factorize karne mai hi to prob hai............ can u plz provide a detailed solution
21http://www.wolframalpha.com/input/?i=factorise+8x%5E2+-14xy+%2B3y%5E2+%2B10x+%2B10y+-25%3D0
7
Sigma
·2012-02-11 09:07:15
if u can't factorise by an easy method, use Sreedhar- Acharya .by getting a quadratic in form of ax2 +bx + c.
1
samagr@
·2012-02-12 02:25:27
8x2-14xy-3y2=(2x-3y)(4x-y)
so, the complete polynomial to be a pair of straight line can be written as(2x-3y+a)(4x-y+b)=0
:
now solve to get a and b.