find the roots of the quadratic equation 0.3x2 - 0,1x - 0.4 = 0
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0.3x^2-0.1x-0.4=0
3x^2-x-4=0
3x^2 +3x-4x-4=0
3x(x+1)-4(x+1)=0
(x+1)(3x-4)=0
x+1=0. 3x-4=0
x= -1 and x= 4/3
3x^2-x-4=0
3x^2 +3x-4x-4=0
3x(x+1)-4(x+1)=0
(x+1)(3x-4)=0
x+1=0. 3x-4=0
x= -1 and x= 4/3
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