xx-5+xx+2=2 হলে, x=?
xx-5+xx+2=2 হলে, x=? Correct Answer -203
xx - 5 + xx + 2 = 2⇒x(x + 2) + x(x - 5)(x + 2)(x - 5) = 2⇒x2 + 2x + x2 - 5xx2 - 3x - 10 = 2⇒2x2 - 3x = 2x2 - 6x - 20⇒2x2 - 3x - 2x2 + 6x = - 20⇒3x = - 20.'.x = - 203xx-5+xx+2=2 হলে, x=? Correct Answer -203
xx - 5 + xx + 2 = 2⇒x(x + 2) + x(x - 5)(x + 2)(x - 5) = 2⇒x2 + 2x + x2 - 5xx2 - 3x - 10 = 2⇒2x2 - 3x = 2x2 - 6x - 20⇒2x2 - 3x - 2x2 + 6x = - 20⇒3x = - 20.'.x = - 203