Question

can you please tell me the ans
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Answer 1

Answer:

1) i) $5xyz$ and $-3zyz$

$= (5xyz)+(-3zyz)\\= 5xyz - 3zyz\\= 2x$

$ii)(3x + 2y), (x-y), (2x+3y)\\= (3x +2y) + (x-y) + (2x+3y)\\= 3x+2y+x-y+2x+3y\\= 3x+x+2x+2y-y+3y\\= 6x+y+3y\\= 6x+4y$

$2) i) 6x-3y-2z from 8x+4y-3z\\= (8x+4y-3z) - (6x-3y-2z)\\= 8x+4y-3z-6x+3y+2z\\= 8x-6x+4y+3y-3z+2z\\= 2x+7y-z$

$ii) 3xy-2y-3x from 4xy+2y+3y\\=(4xy+2y+3y)-(3xy-2y-3y)\\=4xy+2y+3y-3xy-2y-3y\\=4xy-3xy+2y-2y+3y-3y\\=xy+0+0\\=xy$

3. i) 4x × 2x

= 8x²

ii) 3xy × 5z

= 15xyz

iii) 7xy × 8yz

= 56xy²z

HOPE THIS HELPS YOU