Question

0.3x² - 0.1x -0.4 = 0​

Answer 1

Answer:

1)X^3-0.1X=0.3X^2

X^3-0.1X-0.3X^2=0

X(X^2-0.3X-0.1)=0

X=0 ИЛИ X^2-0.3X-0.1=0

D=(0.3^2)-4*(-0.1)=0.49

X1=(0.3+0.7)/2=0.5

X2=(0.3-0.7)=-0.2 -

Answer 2

Answer:

0.3x²-0.1x-0.4=0

Multiply by 10 on both sides

3x²-x-4=0

3x²-4x+3x-4=0

x(3x-4)+1(3x-4)=0

(3x-4)(x+1)=0

x=4/3 and -1 Ans

Please fo||ow

Step-by-step explanation: