Each is a perfect square and the minus sign in-between allows it to be factored easily; (4x2+2y)(4x2-2y).
4(2x^2 - y)(2x^2 + y)
4(4x^4 + y^2)
(x - 4y)(x + y)
16x4 is 64.
2x32
4 to the fourth power just means 4x4x4x4 and then the answer. So if you wanted to find the answer all you have to do is do 4x4 which is 16. Then 16x4 then find the answer. And then the answer to 16x4 times 4.
The answer is 4x4=16 16x4=64
16x4-81y4
(3 - 2y)(3 + 2y)
(2y + 3)(4y2 - 6y +9)
(x - 4y)(x + y)
(4y + 1)(y + 6)
4(y + 2)(y + 2)
4(y + 2)(y + 2)
Assuming the missing signs are pluses, that factors to (4y + 1)(y + 6)
(4y2 + 3)(4y2 - 6y + 3)(4y2 + 6y + 3)
Without an equality sign it is not an equation but the expression can be factored as (2y-3)(2y+3)
If the missing operational signs are pluses, it factors to (y + 6)(4y + 1)
4y2+37a-15=0