Преобразуйте в многочлен:
1. (g+2)²= 2. (6g–3)²= 3. (5c–4)(5c+4)= 4. (3c+5b)(3c–5b)=

(g+2)^2=G^2+4g+4(6g-3)^2=36g^2-36g+9(5c-4)(5c+4)=25c^2+20c-20c-16=25c^2-16(3c+5b)(3c-5b)=9c^2-15cb+15cb-25b^2=9c^2-25b^2