situational problems based on equations reducible to
quadratic equations
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By 'reducible' to quadratic, I meant converting theequation to a quadratic one by making a (clever) substitution. ... Consider the original equationagain: x4 – 10x2 + 9 = 0. If we substitute x2 = y, theequation will look like y2 – 10y + 9 = 0. Aquadratic equation!
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