(4x)^2-216=13x^2

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Solution for (4x)^2-216=13x^2 equation: 



(4x)^2-216=13x^2

We move all terms to the left:

(4x)^2-216-(13x^2)=0

We add all the numbers together, and all the variables

-9x^2-216=0

a = -9; b = 0; c = -216;
Δ = b2-4ac
Δ = 02-4·(-9)·(-216)
Δ = -7776
Delta is less than zero, so there is no solution for the equation

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