Find the combined equation of the straight lines whose separate equations are x-2y-3=0 and x+y+5=0.

Find the separate equation of two straight lines whose joint equation is ab (x^2-y^2) +(a^2-b^2)xy=0

Find the separate equation of two straight lines whose joint equation is ab(x^2-y^2) +(a^2-b^2)xy=0

Find the separate equation of two straight lines whose joint equation is ab (x^2-y^2) +(a^2-b^2)xy=0

Find the separate equation of two straight lines whose joint equation is ab (x^2-y^2) +(a^2-b^2)xy=0

Find the equation of the straight line through the intersection of 5x-6y=1 and 3x+2y+5=0 and perpendicular to the straight line 3x-5y+11=0

Find the separate equation of straight lines by the following equation 2x^2+2xy-y^2=0 .

Find the area of the triangle formed by the straight line whose equations are 2y+x-5=0,y+2x-7=0 and x-y+1=0

Find the combined equation of the straight lines passing through the point (1,1) and parallel to the lines represented by the equation . x^2-5xy+4y^2+x+2y-2=0 .

Find the combined equation of the straight lines passing through the point (1,1) and parallel to the lines represented by the equation . x^2-5xy+4y^2+x+2y-2=0 .

Find the combined equation of the straight lines passing through the point (1,1) and parallel to the lines represented by the equation . x^2-5xy+4y^2+x+2y-2=0 .