Ответ:
<em>1) am + an + ak + bm + bn + bk= a(m + n + k) + b(m + n + k)=(a+ b)(m + n + k)</em>
<em>2) ax + bx + cx + ay + by +cy= х(a + b + c) +у(a + b +c)=(х+у)(a + b + c)</em>
<em>3) mx + my + mz - nx -ny- nz=m(x + y + z) - n(x +y+z)=(m- n)(x +y+z)</em>
<em>4) ta + tb + tc - ak - bk - ck=t(a +b + c) - k(a+ b+ c)=(t - k)(a+ b+ c)</em>
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F (11-4)=7^14-11
f (7)=7^3
f (7)=343