Question

4 ) = ( 3 8 (3 1) Stabileşte valoarea de adevăr a egalităţilor: 5x7 + 8 x 9 +8X6 + 4 = 65 100-9x5+4x0-29 = 26 5x8 x 2 x 100 = 0 4x 8 + 9x 0 + 10 x 6-3x1 = 100​

Answer 1

Răspuns:

Explicație pas cu pas:

5 × 7 + 8 × 9 + 8 × 6 + 4 =

35 + 72 + 48 + 4 =

107 + 48 + 4 =

155 + 4 = 159 ≠ 65 → Fals

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5 × 8 × 2 × 10 × 0 =

40 × 2 × 10 × 0 =

80 × 10 × 0 =

800 × 0 = 0 = 0 → Adevărat

------------pav38--------------

100 - 9 × 5 - 4 × 0 - 29 =

100 - 45 - 0 - 29 =

55 - 0 - 29 =

55 - 29 = 26 = 26 → Adevărat

------------pav38--------------

4 × 8 + 9 × 0 + 10 × 6 - 3 × 1 =

32 + 0 + 60 - 3 =

32 + 60 - 3 =

92 - 3 = 89 ≠ 100 → Fals

Answer 2

$\it a)\ 5\cdot7+8\cdot9+8\cdot6=35+72+48+4=159\ne65 \Rightarrow \ Fals\breve a\\ \\ b)\ \ 100-9\cdot5+4\cdot0-29=100-45+0-29=26 \Rightarrow \ Adev\breve arat\breve a$

$\it c)\ \ 5\cdot8\cdot2\cdot10\cdot0=0 \Rightarrow Adev\breve a rat\breve a$

$\it d)\ \ 4\cdot8+9\cdot0+10\cdot6-3\cdot1=32+0+60-3=89\ne100\Rightarrow \ Fals\breve a$