Question

3. Simplify the following:
(2x - 3y) (3x + y) + (x + 2y) (x - y
)



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Answer 1

Answer:

7x² - 5y² - 6xy

Step-by-step explanation:

(2x - 3y) (3x + y) + (x + 2y) (x - y )

=(2x * 3x) + (2x * y) + (-3y * 3x) + (-3y * y) + (x * x) + (x * -y) + (2y  * x) + (2y * -y)

= 6x² + 2xy - 9xy - 3y² + x² - xy + 2xy - 2y²

= 7x² - 5y² - 6xy

Answer 2

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