Answer:
64w^4 - 48w^2 + 9
Step-by-step explanation:
(I rearranged the terms so I could solve it easier)
Expanding the square:
(-8w^2 + 3)^2
(-8w^2 + 3)(-8w^2 + 3)
Combining like terms:
64w^4 - 24w^2 - 24w^2 + 9
64w^4 - 48w^2 + 9
Final answer: 64w^4 - 48w^2 + 9
