7x+2(x+2)=8x-2x(x-1)

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Solution for 7x+2(x+2)=8x-2x(x-1) equation: 



7x+2(x+2)=8x-2x(x-1)

We move all terms to the left:

7x+2(x+2)-(8x-2x(x-1))=0

We multiply parentheses

7x+2x-(8x-2x(x-1))+4=0



We calculate terms in parentheses: -(8x-2x(x-1)), so:

8x-2x(x-1)

We multiply parentheses

-2x^2+8x+2x

We add all the numbers together, and all the variables

-2x^2+10x

Back to the equation:

-(-2x^2+10x)



We add all the numbers together, and all the variables

-(-2x^2+10x)+9x+4=0

We get rid of parentheses

2x^2-10x+9x+4=0

We add all the numbers together, and all the variables

2x^2-1x+4=0

a = 2; b = -1; c = +4;
Δ = b2-4ac
Δ = -12-4·2·4
Δ = -31
Delta is less than zero, so there is no solution for the equation

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