(4x+5)(x-2)=-12

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Solution for (4x+5)(x-2)=-12 equation: 



(4x+5)(x-2)=-12

We move all terms to the left:

(4x+5)(x-2)-(-12)=0

We add all the numbers together, and all the variables

(4x+5)(x-2)+12=0

We multiply parentheses ..

(+4x^2-8x+5x-10)+12=0

We get rid of parentheses

4x^2-8x+5x-10+12=0

We add all the numbers together, and all the variables

4x^2-3x+2=0

a = 4; b = -3; c = +2;
Δ = b2-4ac
Δ = -32-4·4·2
Δ = -23
Delta is less than zero, so there is no solution for the equation

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