4-2x(4x+9)=5x+25

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Solution for 4-2x(4x+9)=5x+25 equation: 



4-2x(4x+9)=5x+25

We move all terms to the left:

4-2x(4x+9)-(5x+25)=0

We multiply parentheses

-8x^2-18x-(5x+25)+4=0

We get rid of parentheses

-8x^2-18x-5x-25+4=0

We add all the numbers together, and all the variables

-8x^2-23x-21=0

a = -8; b = -23; c = -21;
Δ = b2-4ac
Δ = -232-4·(-8)·(-21)
Δ = -143
Delta is less than zero, so there is no solution for the equation

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