Question

factories 4x²-20x+25 and x⁴-256.

Answer 1

Ans.

1.
$4 {x}^{2} - 20x + 25 \\ = (2x - 5) ^{2} \\ = (2x - 5)(2x - 5)$
2.
$x ^{4} - 256 \\ = ({x}^{2})^{2} - {16}^{2} \\ = ( {x}^{2} - 16)( {x}^{2} + 16) \\ = (x + 4)(x - 4)( {x}^{2} + 16)$
I hope that this helps you.