Answer:
Step-by-step explanation:
Answer: -14y¹²
To find the product, we want to multiply the coefficients and variables.
7y⁹·(-2y³) [multiply coefficients and variables]
-14y¹²
Therefore, the product is -14y¹².
4x + 2y = -18
2x + y = -9
y = -2x - 9
144