Same chapter1 markDifficulty: Easy
One root of x2 − 5x + 6 = 0 is 2. The other root is:
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3 marksDifficulty: Easy
Solve for x: x2 − 4x − 21 = 0.
Original Khojo Papers practice question — not from a past board paper.
Answer
x = 7 or x = −3
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The factors of −21 that add to −4 are −7 and 3, so (x − 7)(x + 3) = 0.
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