Identify which of the following equations shares a solution with the equation x² - 3x - 10 = 0.

Answer Choices

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x² + 5x + 6 = 0

Correct

x² + 3x - 10 = 0

2x² + 8x + 8 = 0

2x² + 2x - 8 = 0

none of the above

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Explanation

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Official Explanation

Official

To find a common solution, we first solve the original equation: x² - 3x - 10 = 0. Factoring gives us (x - 5)(x + 2) = 0. This means either x - 5 = 0, leading to x = 5, or x + 2 = 0, leading to x = -2. Now,…

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Comments

NiharikaOct 23

answer is wrong as there is 2 correct answers for this question so fix this error. correct option should be e if there is no typing error

What this question tests

What it tests

Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.

Common trap

Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.