Hi ,2X( a - B ) + 3y( 5A - 5B ) + 4z ( 2b - 2a )= 2x ( a - b ) + 3y × 5( a - b ) - 4z × 2 ( a - b )= 2x( a - b ) + 15y( a - b ) - 8z ( a - b )= ( a - b ) ( 2x + 15y - 8z )I hope this HELPS you.: )
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