How do you solve 20x2=13x?

1 Answer

x0.78,0.83

Explanation:

Rearranging the equation
20x2+x13=0(1)
ax2+bx+c=0standard equation

Comparing (1) with standard equation

a=20,b=1,c=13

Using quadratic formula:

x=b±b24ac2a

1±124(20×13)2(20)

1±14(260)40

1±1+104040

1±104140

1±32.2640

x1+32.2640,132.2640

x31.2640,33.2640

x0.78,0.83