QUIZ #324
1. 5 + (-4) × (2 + 1) = ...
2. 4 × (-4) ÷ (2 × (-2)) = ...
3. 2² + 2 × (-2) = ...
1. 5 + (-4) × (2 + 1) = ...
2. 4 × (-4) ÷ (2 × (-2)) = ...
3. 2² + 2 × (-2) = ...
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5 + (-4) × (2 + 1)
5 - 4 × 3
5 - 12
-7
__________________
4 × (-4) ÷ (2 × (-2))
-16 ÷ ( -4 )
4
__________________
2² + 2 × (-2)
( 2 × 2 ) + ( - 4 )
4 + ( -4 )
4 - 4
0
Penjelasan dengan langkah-langkah:
= 5 + (-4 ) × ( 2 + 1 )
= 5 + (-4) × 3
= 5 + -12
= -7
= 4 × (-4) ÷ ( 2 × (-2))
= 4 × (-4) ÷ -4
= -16 ÷ ( -4 )
= 4
= 2² + 2 × (-2)
= ( 2 × 2 ) + 2 × (-2)
= 4 + 2 × (-2)
= 4 + (-4)
= 0