Question

9. Factorizar:
$(x^{2} +x) + 10(x^{2}+x)+25$

Answer 1

$( x^{2} +x)^{2}+10( x^{2} +x)+25 \\ \\ (( x^{2} +x)+5)^{2} \\ \\ ( x^{2} +x+5)^{2}$