How to solve these ?
1)If the equation(a^2+b^2)x^2 - 2b(a+c)x + b^2+c^2 has equal roots then , which of the following is right and how ?
a) 2b=a+c b)b^2=ac c)b=2ac/a+c d)b=ac
2)If the equation(a^2+b^2)x^2 - 2(ac+bd)x +c^2+d^2 = 0 has equal roots then
a)ab=cd b)ad=bc c)ad=under root bc d)ab=under root cd
How to solve these ?
1)If the equation(a^2+b^2)x^2 - 2b(a+c)x + b^2+c^2 has equal roots then , which of the following is right and how ?
a) 2b=a+c b)b^2=ac c)b=2ac/a+c d)b=ac
2)If the equation(a^2+b^2)x^2 - 2(ac+bd)x +c^2+d^2 = 0 has equal roots then
a)ab=cd b)ad=bc c)ad=under root bc d)ab=under root cd
saravanan ramesh , 12 Years ago
Grade 10
