Question

преобразуйте в многочлен
(-r-p)^2
(-n-4)^2
(-m-7)^2

Answer 1

$(-r-p)^2=\Big (-(r+p)\Big )^2=(-1)^2\cdot (r+p)^2=+1\cdot (r^2+2rp+p^2)=\\\\=r^2+2rp+p^2\\\\(-n-4)^2=+(n+4)^2=n^2+8n+16\\\\(-m-7)^2=+(m+7)^2=m^2+14m+49$

$P.S.\; \; \; ili\\\\(-r-p)^2=\Big ((-r)+(-p)\Big )^2=(-r)^2+2(-r)\cdot (-p)+(-p)^2=\\\\=r^2+2rp+p^2$