b) \( x^{2}+2 x-48=C \)
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Did you know that the equation \( x^{2}+2 x-48=0 \) can be solved using the quadratic formula? The formula \( x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \) is your best friend here, where \( a=1 \), \( b=2 \), and \( c=-48 \). This will give you the roots of the quadratic, showing you where it intersects the x-axis! Now, about common pitfalls: When applying the quadratic formula, some might forget to calculate the discriminant \( b^2 - 4ac \) correctly. A positive discriminant means two distinct real roots, zero means one real root, and a negative discriminant indicates no real solutions at all. Double-check your math to avoid those blunders!