Answer:
(4 -- 5x^2)(16 + 20x^2 + 15x^4)
Step-by-step explanation:
start with factoring out -- 1
After factoring out −1 we have: -25x^6 + 64 = --1(125x^6 -- 64)
To factor 125x^6 − 64 we can use difference of cubes formula
After putting I=5x^2 and II=4 , we got:
125x^6 − 64=(5x^2 − 4)(25x^4 + 20x^2+16) which is basically your answer.
hope this helps! have an amazing day <3
