Subtract the following algebraic expressions: [(9y + 3x) (x + y)] - [(-3y + x + 2y - 3x)]
Answers
Answered by
0
Answer:
3x² + 9y² + 2x + y + 12xy
Step-by-step explanation:
[(9y + 3x) (x + y)] - [(-3y + x + 2y - 3x)]
= [ (9y * x) + (9y * y) + (3x * x) + (3x * y)] - [- y - 2x]
= [9xy + 9y² + 3x² + 3xy] + y + 2x
= 12xy + 9y² + 3x² + 2x + y
= 3x² + 9y² + 2x + y + 12xy
Similar questions