Multiply (3x + 5y + 4z) by (2x - 3y + z) - SchoolNGR

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Multiply (3x + 5y + 4z) by (2x - 3y + z)

Multiply (3x + 5y + 4z) by (2x - 3y + z)

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Take Free Practice Test On 2026 JAMB UTME, Post UTME, WAEC SSCE, GCE, NECO SSCE

A 6x² + xy - 15y² + 4z² + 11xz - 7yz
B 6x² + 3xy - 15y² + 4z²
C 6x² + 3xy - y² + 4z²
D 6x² + 3xy - 15y + z²

Correct Answer: Option A

Explanation:
(3x + 5y + 4z)(2x - 3y + z)
6x² + 9xy + 3x² + 10xy - 15y² + 5yz + 8xz - 12yz + 4z²
= 6x² + xy - 15y² + 4z² + 11xz - 7yz

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