Question

vă rog este urgent dau coroana

Answer 1

-x²+10x+2 = 0 |*(-1) x² -10x - 2 = 0 delta = b² -4*a*c = 100-4*1*(-2) = 100+8 = 108 x1,2 = (-b +/- √delta)/2a x1 = (10+6√3)/2 = 2(5+3√3)/2 = 5+3√3 x2 = (10-6√3)/2 = 2(5-3√3)/2 = 5-3√3