Решите уравнение: x+1/7=3/7 x-4/11=7/11 x-3/13=10/13 4x+1/2=3/4

Question

Математика: Решите уравнение: x+1/7=3/7 x-4/11=7/11 x-3/13=10/13 4x+1/2=3/4

annalukyanova7 · Accepted Answer

А) 1) 49+51 = 100; 2) 56+72 = 128

b) 1) 59-34 = 25;    2) 66-42 = 24

c) 1) 7^2 + 2^2 = 49 + 4 = 53; 2) 9^2 + 7^2 = 81 + 49 = 130

d) 1) (11+2)^2 = 13^2 = 169;    2) (6+7)^2 = 13^2 = 169

e) 1) 15^2 - 4^2 = 225 - 16 = 209;   2) 6^2 - 2^2 = 36 - 4 = 32

f) 1) (5-3)^2 = 2^2 = 4; 2) (6-4)^2 = 2^2 = 4

g) 1) 4^3 + 3^3 = 64 + 27 = 91; 2) 5^3 + 2^3 = 125 + 8 = 133

h) 1) (13+7)^3 = 20^3 = 8000;    2) (5+6)^3 = 11^3 = 1331

i) 4^3 - 3^3 = 64 - 27 = 37; 2) 5^3 - 1^3 = 125 - 1 = 124

j) (49-46)^3 = 3^3 = 27;   2) (56-52)^3 = 4^3 = 64;

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