Помогите пожалуйста очень срочно надо. Упростите выражения : 1 ) а ( а + 2b ) - ( b + a )^2=
2 ) ( m + 4 )^2 - ( m - 3 ) ( m + 3 )=
3 ) 3 ( b - 1 )^2 + 8b=
4) (n+5)^2 - n(n -7)= .
5) 2c(8c -3)-(4c+ 1)^2 =.
6)(6 - n)(n+6) +(n-4)^2=.
7) (2+a)(2-a)(4-a^2) - a^4=.
8) (m+n)(m-n)(m^2 -n^2)+2m^2 n^2 =.
9)(a+3)(a-3)(a-3)(a+3)+18a^2=.
10) (x+2)^2 * (x - 2)^2 - x^4+16 =
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