8x^2+9=4x^2-4x=8

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Solution for 8x^2+9=4x^2-4x=8 equation: 



8x^2+9=4x^2-4x=8

We move all terms to the left:

8x^2+9-(4x^2-4x)=0

We get rid of parentheses

8x^2-4x^2+4x+9=0

We add all the numbers together, and all the variables

4x^2+4x+9=0

a = 4; b = 4; c = +9;
Δ = b2-4ac
Δ = 42-4·4·9
Δ = -128
Delta is less than zero, so there is no solution for the equation

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