Question

9 (x +y³) - 16 (x +y)​

Answer 1

Step-by-step explanation:

9x+9y^3-16x+16y,-7x+9y^3+16y

Answer 2

Answer:

$9(x + {y}^{3}) - 16(x + y) \\ = 9x + 9 {y}^{3} - 16x - 16y \\ = 9 {y}^{3 } - 16y - 7x \\ = y(9 {y}^{2} - 16) - 7x$

Step-by-step explanation:

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