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Move everything to the left hand side of the equation
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$4y^2+4y+1-e^{\frac{-x}{2}}=0$
Learn how to solve problems step by step online. Solve the exponential equation 4y^2+4y+1=e^((-x)/2). Move everything to the left hand side of the equation. The trinomial 4y^2+4y+1-e^{\frac{-x}{2}} is a perfect square trinomial, because it's discriminant is equal to zero. Using the perfect square trinomial formula. Factoring the perfect square trinomial.