28=4-4(5x+2)4x

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Solution for 28=4-4(5x+2)4x equation: 



28=4-4(5x+2)4x

We move all terms to the left:

28-(4-4(5x+2)4x)=0



We calculate terms in parentheses: -(4-4(5x+2)4x), so:

4-4(5x+2)4x

determiningTheFunctionDomain
-4(5x+2)4x+4

We multiply parentheses

-80x^2-32x+4

Back to the equation:

-(-80x^2-32x+4)



We get rid of parentheses

80x^2+32x-4+28=0

We add all the numbers together, and all the variables

80x^2+32x+24=0

a = 80; b = 32; c = +24;
Δ = b2-4ac
Δ = 322-4·80·24
Δ = -6656
Delta is less than zero, so there is no solution for the equation

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