-3.9(0.4x)2-3=0.1(x-5)2-3.2

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Solution for -3.9(0.4x)2-3=0.1(x-5)2-3.2 equation: 



-3.9(0.4x)2-3=0.1(x-5)2-3.2

We move all terms to the left:

-3.9(0.4x)2-3-(0.1(x-5)2-3.2)=0

We add all the numbers together, and all the variables

-3.9(+0.4x)2-(0.1(x-5)2-3.2)-3=0

We multiply parentheses

-0x-(0.1(x-5)2-3.2)-3=0



We calculate terms in parentheses: -(0.1(x-5)2-3.2), so:

0.1(x-5)2-3.2

We multiply parentheses

0.2x-1-3.2

We add all the numbers together, and all the variables

0.2x-4.2

Back to the equation:

-(0.2x-4.2)



We add all the numbers together, and all the variables

-1x-(0.2x-4.2)-3=0

We get rid of parentheses

-1x-0.2x+4.2-3=0

We add all the numbers together, and all the variables

-1.2x+1.2=0

We move all terms containing x to the left, all other terms to the right

-1.2x=-1.2

x=-1.2/-1.2

x=1

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