Ответ:
1) 10m - 2n
если m = -2, а n = - 1,5 , то 10m - 2n = 10 * (-2) - 2 * (-1,5) = -20 + 3 = -17
2) 10a - 35b - 5a + 35b = 10a - 5a + 35b - 35b = 10a - 5a = 5a
3) 25x - 7 = 30 - 12x
25x + 12x = 30 + 7
37x = 37
x = 37 : 37
x = 1
4) x^9 * x^25 * x^11 = x^ 9 + 25 + 11 = x^45
5) 1| непонятно
2| -10 (4 + 3x) = -10 * 4 - 10 * 3x = -40 - 30x
6) 4pk^3 ( -15p^4k^2 ) = -60 p^5 k^5
7) ( -3a^5 b )^4 = -3^4 a^20 b^4 = 81 a^20 b^4
8) 5^13 * 5^6 * 5^17 = 5^ 13+6+17 = 5^36
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Ответ:
1) 10m - 2n
если m = -2, а n = - 1,5 , то 10m - 2n = 10 * (-2) - 2 * (-1,5) = -20 + 3 = -17
2) 10a - 35b - 5a + 35b = 10a - 5a + 35b - 35b = 10a - 5a = 5a
3) 25x - 7 = 30 - 12x
25x + 12x = 30 + 7
37x = 37
x = 37 : 37
x = 1
4) x^9 * x^25 * x^11 = x^ 9 + 25 + 11 = x^45
5) 1| непонятно
2| -10 (4 + 3x) = -10 * 4 - 10 * 3x = -40 - 30x
6) 4pk^3 ( -15p^4k^2 ) = -60 p^5 k^5
7) ( -3a^5 b )^4 = -3^4 a^20 b^4 = 81 a^20 b^4
8) 5^13 * 5^6 * 5^17 = 5^ 13+6+17 = 5^36