Step-by-step explanation:
81x⁴ - 16y⁴
(9x²)² - (4y²)²
(9x² + 4y²)(9x² - 4y²)
(9x² + 4y²)(3x + 2y)(3x - 2y)
Answer:
5.6
by dividing
y ≥−3
1 By inspecting the graph, the range is:
y\ge -3y≥−3
Done
6
The answer is 1.9 gallons
