How B in example is B={5} How B in example is B={5} Example: Equal sets; Two having exactly sanr elema1B 1 B = {x : x is an integral positive root Of the equation + x 20 Share with your friends Share 0 Lovina Kansal answered this Dear student x2+x-20=0⇒x2+5x-4x-20=0⇒xx+5-4x+5=0⇒x-4x+5=0⇒x=4 and x=-5So B=4 as, 4 is the positive root of the equation Regards 0 View Full Answer Jay Sharma answered this X^2+x-20=(x^2+5x-4x-20) = x(x+5)-4(x+5) = (x-4) (x+5) , So, x= 4 or x=-5 ( neglect negative value as we need only integral positive value) . So, x = 4. Set (B) = 4 1
