Question

3x^ 2 +5sqrt5 x-10=0, find the solution by quadratic method​

Answer 1

Step-by-step explanation:

D = b^2 - 4ac

= (5√5)^2 - 4*3*(-10)

= 125 + 120

= 245

Then, x = (-b+D) /2a or (-b-D) /2a

= (-5√5 + 245)/6 or (-5√5-245)/6