1) \( 2 x^{4}+9 x^{2}-68=0 \) 2) \( 18 x^{2}-2=0 \) \( 2-3 x \quad 3+2 x \)
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Bonus Knowledge
To tackle the first equation, \( 2 x^{4}+9 x^{2}-68=0 \), let’s make a substitution to simplify it! If we let \( y = x^2 \), then the equation transforms into a quadratic: \( 2y^2 + 9y - 68 = 0 \). By applying the quadratic formula, \( y = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \), you can find the values of \( y \) and revert back to \( x \). Moving on to the second one, \( 18 x^{2}-2=0 \) is much simpler. Just add 2 to both sides, divide by 18, and then take the square root! You’ll find stunning results for \( x \) as \( \pm \sqrt{\frac{1}{9}} \) or \( \pm \frac{1}{3} \). For the expressions \( 2-3 x \) and \( 3+2 x \), they can take on different meanings based on the context, like function outputs or even settings for systems of equations. But both lead to valuable insights in everyday problems or modeling situations, adding to the fun of algebra!