6(2-x)-4=-5x(x+3)

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Solution for 6(2-x)-4=-5x(x+3) equation: 



6(2-x)-4=-5x(x+3)

We move all terms to the left:

6(2-x)-4-(-5x(x+3))=0

We add all the numbers together, and all the variables

6(-1x+2)-(-5x(x+3))-4=0

We multiply parentheses

-6x-(-5x(x+3))+12-4=0



We calculate terms in parentheses: -(-5x(x+3)), so:

-5x(x+3)

We multiply parentheses

-5x^2-15x

Back to the equation:

-(-5x^2-15x)



We add all the numbers together, and all the variables

-(-5x^2-15x)-6x+8=0

We get rid of parentheses

5x^2+15x-6x+8=0

We add all the numbers together, and all the variables

5x^2+9x+8=0

a = 5; b = 9; c = +8;
Δ = b2-4ac
Δ = 92-4·5·8
Δ = -79
Delta is less than zero, so there is no solution for the equation

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