Question

correct answer will marked as brainlist​

Answer 1

Answer:

$<marquee > 21x - squarey - 3xyz$

Answer 2

6x²y × 3xy + 9x²y + 6x²y

= 18x³y² + (9+6) x²y

= 18x³y² + 15x²y

= (18xy+15) x²y

= (33xy) x²y

= 33x³y²

The answer is 33x³y².

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