Question

Разложи на множители:
1−s^2−2sh−h^2

Answer 1

$1-s^2-2sh-h^2=1-(s^2+2sh+h^2)=1^2-(s+h)^2=\\\\\star \; \; A^2-B^2=(A-B)(A+B)\; \; \star \\\\=(1-s-h)(1+s+h)$