Question

Factor completely:
5x4 - 125

5(x4 - 25)

5(x2 + 5)(x2 - 5)

5(x2 + 5)(x – 3)(x – 2)

prime

Answer 1

option 2

Answer 2

5{x^4-25}
=>5{(x^2)^2-5^2}
=> 5{(x^2 + 5)( x^2 - 5) }
=> 5(x^2 + 5)(x+ sqroot(5))(x-sqroot(5))

Answer 3

\[5 \left(x^2-5\right) \left(x^2+5\right) \]