(x)=-0.8(x-1.5)(x-3.7)

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Solution for (x)=-0.8(x-1.5)(x-3.7) equation: 



(x)=-0.8(x-1.5)(x-3.7)

We move all terms to the left:

(x)-(-0.8(x-1.5)(x-3.7))=0

We multiply parentheses ..

-(-0.8(+x^2-3.7x-1.5x+5.55))+x=0



We calculate terms in parentheses: -(-0.8(+x^2-3.7x-1.5x+5.55)), so:

-0.8(+x^2-3.7x-1.5x+5.55)

We multiply parentheses

-0.8x^2+2.4x+0.8x-4.44

We add all the numbers together, and all the variables

-0.8x^2+3.2x-4.44

Back to the equation:

-(-0.8x^2+3.2x-4.44)



We get rid of parentheses

0.8x^2-3.2x+x+4.44=0

We add all the numbers together, and all the variables

0.8x^2-2.2x+4.44=0

a = 0.8; b = -2.2; c = +4.44;
Δ = b2-4ac
Δ = -2.22-4·0.8·4.44
Δ = -9.368
Delta is less than zero, so there is no solution for the equation

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