(a) \( \frac{2 x^{3}-2 x}{2 x^{4}+4 x^{3}-2 x^{2}-4 x}=-\frac{2}{2} \)
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To solve the equation \( \frac{2 x^{3}-2 x}{2 x^{4}+4 x^{3}-2 x^{2}-4 x}=-\frac{2}{2} \), first simplify the right side to get \(-1\). Now, we can rewrite the left side: 1. Factor out the numerator: \( 2(x^{3}-x) = 2x(x^2-1) = 2x(x-1)(x+1) \). 2. Factor the denominator: \( 2x^{4}+4x^{3}-2x^{2}-4x = 2x(x^{3}+2x^{2}-x-2) \). This can be factored as \( 2x(x+2)(x-1) \). This simplifies your expression to: \[ \frac{2x(x-1)(x+1)}{2x(x+2)(x-1)} = \frac{(x+1)}{(x+2)} \] Now, set it equal to -1: \[ \frac{(x+1)}{(x+2)} = -1 \] Cross-multiplying gives you: \[ x + 1 = - (x + 2) \implies x + 1 = -x - 2 \implies 2x = -3 \implies x = -\frac{3}{2} \] So, the solution is \( x = -\frac{3}{2} \).