Раскройте скобки 1) (t+m)^2 = 2) (t-3)^2 = 3) (2t+1)^2 = 4) (3m-2t)^2 = 5) (p+q)^2 = 6) (p-8)^2 = 7) (7y-1)^2 = 8) (6p+5g)^2 =

Пользуюсь формулой квадрата суммы/разности:

1. $(t+m)^2=t^2+2tm+m^2$.

2. $(t-3)^2=t^2-2\cdot t\cdot3+3^2=t^2-6t+9$.

3. $(2t+1)^2=(2t)^2+2\cdot(2t)\cdot1+1^2=4t^2+4t+1$.

4. $(3m-2t)^2=(3m)^2-2\cdot(3m)\cdot(2t)+(2t)^2=9m^2-12mt+4t^2$.

5. $(p+q)^2=p^2+2pq+q^2$.

6. $(p-8)^2=p^2-2\cdot p\cdot8+8^2=p^2-16p+64$.

7. $(7y-1)^2=(7y)^2-2\cdot(7y)\cdot1+1^2=49y^2-14y+1$.

8. $(6p+5g)^2=(6p)^2+2\cdot(6p)\cdot(5g)+(5g)^2=36p^2+60pg+25g^2$.