Answer:
Step-by-step explanation:
The product of..2x + y and 5x - y +3....
= (2x + y) × (5x - y + 3)
= (10x² -2xy + 6x + 5xy -y² + 3y)
= ( 10x²- y² +3xy +6x + 3y)
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Answer:
9x
Step-by-step explanation:
m=10x-x
10x means x in ten places so, it can be subtracted normally
m=9x
Answer: FIRST ONE
Step-by-step explanation: