Question

$(7x - 3y)(x - 4y) + (5x - 9y)(y - 2x)$
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Answer 1

Step-by-step explanation:

(7x - 3y)(x - 4y) + (5x - 9y)(y - 2x)

7x(x-4y) -3y(x-4y) + 5x (y- 2x) -9y (y-2x)

7x²-28xy -3xy + 12y² + 5xy -10 x²-9y²+ 18xy

Add the like terms.

-3x² + 3y² -1xy

Hope it helps!!!