Question

х-5^2
6а+7b
m+3 m-3
8m+4n 8m-4m
срочнооо​

Answer 1

1) (х-5)²=х²-10х+25

2) (6а+7b)²=36a²+84ab+49b²

3) (m+3)(m-3)=m²-9

4) (8m+4n)(8m-4n)=64m²-16n²