X(-4x)=9+x

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Solution for X(-4x)=9+x equation: 



X(-4X)=9+X

We move all terms to the left:

X(-4X)-(9+X)=0

We add all the numbers together, and all the variables

X(-4X)-(X+9)=0

We multiply parentheses

-4X^2-(X+9)=0

We get rid of parentheses

-4X^2-X-9=0

We add all the numbers together, and all the variables

-4X^2-1X-9=0

a = -4; b = -1; c = -9;
Δ = b2-4ac
Δ = -12-4·(-4)·(-9)
Δ = -143
Delta is less than zero, so there is no solution for the equation

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