Question

$(x {}^{2} \: - 5)(x + 5) \: + 25$
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Answer 1

Step-by-step explanation:

$(x {}^{2} \: - 5)(x + 5) \: + 25$

$={x}^{2}(x+5)-5 (x+5)+25$

$={x}^{3}+{5x}^{2}-5x+0+25$

$={x}^{3}+{5x}^{2}-5x+25$

$=x({x}^{2}+5x-5)+25$

$={\boxed{(x+25)({x}^{2}+5x-5)}}$