3bracket 3 X + 4 Y + 5 Z bracket bracket 4 x + 3 Y + 4 Z bracket
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Answer:
36(xy)+60z
Step-by-step explanation:
3(3x+4y+5z)(4x+3y+4z)
=> (9x+12y+15z)(4x+3y+4z)
=> 36x+36y+60z
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