Ответ:
62.44
Объяснение:
(d-7)*(d+3)-(d+6)*(d-14) =
= d²-7d+3d-21-(d²+6d-14d-84) =
= -4d-21-(-8d-84) =
= -4d-21+8d+84 =
= 4d+63
d = -0.14
4d+63 = 4*(-0.14)+63 = -0.56+63 = 62.44
-107,24.......................
вроде так
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Verified answer
Ответ:
62.44
Объяснение:
(d-7)*(d+3)-(d+6)*(d-14) =
= d²-7d+3d-21-(d²+6d-14d-84) =
= -4d-21-(-8d-84) =
= -4d-21+8d+84 =
= 4d+63
d = -0.14
4d+63 = 4*(-0.14)+63 = -0.56+63 = 62.44
Ответ:
-107,24.......................
вроде так