Question

Помогите решить пример. .1) (5m+3)^2-25m^2-29m+1 .2) (5d-3)(5d+3)-(5d+3)^2

Answer 1

1) = 25m^2 + 30m + 9 - 25m^2 - 29m +1 = m + 10

2) = 25d^2 -9 - (25d^2+30+9) = 25d^2-9-25d^2-30d-9 = -30d-18

Answer 2

1)25m^2+30m+9-25m^2-29m+1

     30m+9-29m+1

      1m=10

      m=0.1