4(x-7)=0.3x(x+2)+2.11

Solution for 4(x-7)=0.3x(x+2)+2.11 equation:

4(x-7)=0.3x(x+2)+2.11

We move all terms to the left:

4(x-7)-(0.3x(x+2)+2.11)=0

We multiply parentheses

4x-(0.3x(x+2)+2.11)-28=0


We calculate terms in parentheses: -(0.3x(x+2)+2.11), so:

0.3x(x+2)+2.11

We multiply parentheses

0x^2+0x+2.11

We add all the numbers together, and all the variables

x^2+x+2.11

Back to the equation:

-(x^2+x+2.11)


We get rid of parentheses

-x^2+4x-x-2.11-28=0

We add all the numbers together, and all the variables

-1x^2+3x-30.11=0

a = -1; b = 3; c = -30.11;
Δ = b2-4ac
Δ = 32-4·(-1)·(-30.11)
Δ = -111.44
Delta is less than zero, so there is no solution for the equation