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- List the given numbers and units.
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Correct Answer: B
Correct Answer: B
Method / Topic: Advanced Math
The answer follows from the arithmetic relation between the given values.
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Correct Answer: B
Method / Topic: Advanced Math
Find two numbers that multiply to 20 and add to 9: 4 and 5. Thus x^2 - 9x + 20 = (x - 4)(x - 5), giving x = 4 and x = 5.
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Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Shortcut used, common trap, and the fastest solving route
- List the given numbers and units.
- Choose the formula that matches the asked value.
- Simplify carefully and compare with options.
The quadratic equation x^2 - 9x + 20 = 0 has solutions x =
Explanation
Correct Answer: B
Method / Topic: Advanced Math
The answer follows from the arithmetic relation between the given values.
Short Explanation
Detailed Explanation
Correct Answer: B
Method / Topic: Advanced Math
Find two numbers that multiply to 20 and add to 9: 4 and 5. Thus x^2 - 9x + 20 = (x - 4)(x - 5), giving x = 4 and x = 5.
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