Question

I don't know how to solve this question could you guys please help me solve it please ​

Answer 1

Answer:

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Step-by-step explanation:

${x}^{4} - (x - z) {}^{4} \\ \\ = ( {x}^{2} ) {}^{2} - [(x - z) {}^{2} ] {}^{2} \\ \\ = [ {x}^{2} + (x - z) {}^{2}][{x}^{2} - (x - z) {}^{2} ] \\ \\ = ({x}^{2} + {x}^{2} - 2xz + z {}^{2} )(x + x - z)(x - x + z) \\ \\ =( 2 {x}^{2} - 2xz + z {}^{2}) (2x - z)(z)$