Question

3x**+4x=0

 

 

x**-49=0 **-в квадрате

Answer 1

3x^2+4x=0

D=4^2-4*3*0=16

x1=(4-4)/(2*3)=0
x2=(-4-4)/(2*3)=-8/6=-4/3

 

x^2-49=0

D=0^2-4*1*(-49)=196

x1=14/2=7
x2=-14/2=-7