Mathematics · Algebraic Identities
If (3a + 6b + c + 2d) × (3a - 6b - c + 2d) = (3a - 6b + c - 2d) × (3a + 6b - c - 2d), then which one of the following is correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1ad + bc = 0
- 2ad = bc✓
- 3ac = bd
- 4ab = cd
Correct answer
ad = bc
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